Let P and Q be the inverse points with respect to the circle S \equiv x^2+y^2-4 x-6 y+k=0 and C be the centre of the circle S=0 such that C P \cdot C Q=4. If P=(1,2) and Q=(a, b), then 2 a=

AP EAPCET 15th May 2023 Shift 2 Solved Paper

Section: Mathematics

Question : 51 of 160

Marks: +1, -0

Let P and Q be the inverse points with respect to the circle S≡x2+y2−4x−6y+k=0 and C be the centre of the circle S=0 such that CP⋅CQ=4. If P=(1,2) and Q=(a,b), then 2a=

b
−1
3b
0

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