AP EAPCET 16th May 2023 Shift 2 Solved Paper

Section: Mathematics

Question : 54 of 160

Marks: +1, -0

P is a point of intersection of the circles S≡x2+y2−6x+2ky+1=0 and S1≡x2+y2+2kx−6y−7=0. If the tangent at P to S=0 pass through the centre of S1=0 and the tangent at P to S1=0 pass through the centre of S=0, then the radius of S1=0 is

‌
√33
2
33
√17
‌
√65
2

Validate

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