circle

Question: The locus of mid point of the chords of the circle ${{x}^{2}}+{{y}^{2}}-2x-2y-2=0$ which makes an angle of $120{}^\circ $ at the centre is

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

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

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

4) None of these

Solution:

Explanation: No Explanation

Chord of contact of tangent Pole and Polar

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