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  4. The common chord of two intersecting circles C1 and C2 can be seen from their centres at the angles of 90 60 respectively. If the distance between their centres is equal to √3+1 then the radii of C 1 and C 2 are-

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Q. The common chord of two intersecting circles $C_1$ and $C_2$ can be seen from their centres at the angles of 90 & 60 respectively. If the distance between their centres is equal to $\sqrt{3}+1$ then the radii of $C _1$ and $C _2$ are-

Conic Sections

Solution:

Correct answer is (c) $\sqrt{2}$ and 2