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22.04.2021 •
Mathematics
X2 + y2 -2x + 24y +120 = 0 Find the center and radius of this circle by converting it to (x-h)2 + (y-k)2 =r2
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Ответ:
r=5 O(1;-12)
Step-by-step explanation:
x² + y² -2x + 24y +120 = 0
⇒ x²-2x+1+ y²+ 24y+144-145+120 = 0
⇒ (x-1)²+ (y+12)²=25 and (x-h)² + (y-k)² =r²
so, h=1 k=-12 r=√25=5
center is O(h;k) O(1;-12)
Ответ:
24
Step-by-step explanation: