What is the radius of a circle whose equation is x2 y2 – 10x 6y 18 = 0?
Asked by maham237 @ in Mathematics viewed by 414 People
Answered by maham237 @
Hello,
x²+y²-10x+6y+18=0
==>(x²-2*5x+25)+(y²+2*3y+9)+18-25-9=0
==>(x-5)²+(y+3)²=16
Radius is 4.
Center (5,-3)
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