circle

Question: A line through (0,0) cuts the circle ${{x}^{2}}+{{y}^{2}}-2ax=0$ at A and B, then locus of the centre of the circle drawn on AB as a diameter is

1) ${{x}^{2}}+{{y}^{2}}-2ay=0$

2) ${{x}^{2}}+{{y}^{2}}+ay=0$

3) ${{x}^{2}}+{{y}^{2}}+ax=0$

4) ${{x}^{2}}+{{y}^{2}}-ax=0$

Solution:

Explanation: No Explanation

Chord of contact of tangent Pole and Polar

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