حلول الأسئلة
السؤال
أوجد إحداثيات مركز وطول نصف قطر كل من الدوائر الآتية:
70) x 2+ y 2 = 1
الحل
المركز (0 , 0)، ونصف القطر 1
شاهد حلول جميع الاسئلة
حل أسئلة مراجعة تراكمية
أوجد الضرب الاتجاهي للمتجهين u, v في كلّ مما يأتي، ثم بيّن أن u × v يعامد كلاً من u, v:
60) format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2216%22%3Eu%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2218.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2234.5%22%20x2%3D%2229.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2229.5%22%20x2%3D%2234.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2240.5%22%20y%3D%2216%22%3E4%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2247.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2259.5%22%20y%3D%2216%22%3E10%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2270.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2277.5%22%20y%3D%2216%22%3E1%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2284.5%22%20x2%3D%2289.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2289.5%22%20x2%3D%2284.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2293.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%22100.5%22%20y%3D%2216%22%3Ev%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22113.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22129.5%22%20x2%3D%22124.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22124.5%22%20x2%3D%22129.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22138.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22150.5%22%20y%3D%2216%22%3E5%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22157.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22164.5%22%20y%3D%2216%22%3E1%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22171.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22178.5%22%20y%3D%2216%22%3E7%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22185.5%22%20x2%3D%22190.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22190.5%22%20x2%3D%22185.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3C%2Fsvg%3E)
3-، ليسا متعامدين.
61) format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2216%22%3Eu%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2218.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2234.5%22%20x2%3D%2229.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2229.5%22%20x2%3D%2234.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2243.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2255.5%22%20y%3D%2216%22%3E5%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2262.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2269.5%22%20y%3D%2216%22%3E4%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2276.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2283.5%22%20y%3D%2216%22%3E2%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2290.5%22%20x2%3D%2295.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2295.5%22%20x2%3D%2290.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2299.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%22106.5%22%20y%3D%2216%22%3Ev%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22119.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22135.5%22%20x2%3D%22130.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22130.5%22%20x2%3D%22135.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22144.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22156.5%22%20y%3D%2216%22%3E4%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22163.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22173.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22185.5%22%20y%3D%2216%22%3E9%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22192.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22199.5%22%20y%3D%2216%22%3E8%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22206.5%22%20x2%3D%22211.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22211.5%22%20x2%3D%22206.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3C%2Fsvg%3E)
0، متعامدان.
62) format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2216%22%3Eu%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2218.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2234.5%22%20x2%3D%2229.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2229.5%22%20x2%3D%2234.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2243.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2255.5%22%20y%3D%2216%22%3E8%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2262.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2272.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2284.5%22%20y%3D%2216%22%3E3%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2291.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22103.5%22%20y%3D%2216%22%3E12%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22114.5%22%20x2%3D%22119.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22119.5%22%20x2%3D%22114.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22123.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%22130.5%22%20y%3D%2216%22%3Ev%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22143.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22159.5%22%20x2%3D%22154.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22154.5%22%20x2%3D%22159.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22165.5%22%20y%3D%2216%22%3E4%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22172.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22182.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22194.5%22%20y%3D%2216%22%3E6%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22201.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22208.5%22%20y%3D%2216%22%3E0%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22215.5%22%20x2%3D%22220.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22220.5%22%20x2%3D%22215.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3C%2Fsvg%3E)
14-، ليسا متعامدين.
إذا كان
، فأوجد كلاً مما يأتي:
63) 3a + 2b + 8c
64) 2a + 4b - 5c-
أوجد الزاوية
بين المتجهين u, v لكل مما يأتي:
65) format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2216%22%3Eu%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2218.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2234.5%22%20x2%3D%2229.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2229.5%22%20x2%3D%2234.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2240.5%22%20y%3D%2216%22%3E4%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2247.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2257.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2269.5%22%20y%3D%2216%22%3E3%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2276.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2283.5%22%20y%3D%2216%22%3E5%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2290.5%22%20x2%3D%2295.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2295.5%22%20x2%3D%2290.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2299.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%22106.5%22%20y%3D%2216%22%3Ev%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22119.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22135.5%22%20x2%3D%22130.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22130.5%22%20x2%3D%22135.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22141.5%22%20y%3D%2216%22%3E2%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22148.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22155.5%22%20y%3D%2216%22%3E6%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22162.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164afa8eacc29041f17144b9f42%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22172.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22184.5%22%20y%3D%2216%22%3E8%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22191.5%22%20x2%3D%22196.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22196.5%22%20x2%3D%22191.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3C%2Fsvg%3E)
133.9°
66) u = 2 i - 4 j + 7 k, v = 5 i + 6 j - 11 k
144.3°
67) format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2216%22%3Eu%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2218.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2234.5%22%20x2%3D%2229.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2229.5%22%20x2%3D%2234.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2243.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2255.5%22%20y%3D%2216%22%3E1%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2262.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2269.5%22%20y%3D%2216%22%3E1%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2276.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2283.5%22%20y%3D%2216%22%3E5%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2290.5%22%20x2%3D%2295.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2295.5%22%20x2%3D%2290.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2299.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%22106.5%22%20y%3D%2216%22%3Ev%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22119.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22135.5%22%20x2%3D%22130.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22130.5%22%20x2%3D%22135.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22141.5%22%20y%3D%2216%22%3E7%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22148.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22158.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22170.5%22%20y%3D%2216%22%3E6%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1c3eabe56388c5f9cb7de19517e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22177.5%22%20y%3D%2216%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22184.5%22%20y%3D%2216%22%3E9%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22191.5%22%20x2%3D%22196.5%22%20y1%3D%2217.5%22%20y2%3D%2210.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22196.5%22%20x2%3D%22191.5%22%20y1%3D%2210.5%22%20y2%3D%223.5%22%2F%3E%3C%2Fsvg%3E)
61.45°
أوجد إحداثيات مركز وطول نصف قطر كل من الدوائر الآتية:
x 2 + (y - 1) 2 = 9 (68
المركز (0,1)، ونصف القطر 3
(x + 1) 2 + y 2 = 16 (69
4 المركز (0,-1)، ونصف القطر
70) x 2 + y2 = 1
المركز (0 , 0)، ونصف القطر 1