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  4. If two circles a (x2 + y2) + bx + cy = 0 and A (x2, + y2) + Bx + Cy = 0 touch each other, then

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Q. If two circles a$ (x^2 + y^2) + bx + cy = 0 $ and $A (x^2, + y^2) + Bx + Cy = 0$ touch each other, then

Conic Sections

Solution:

Correct answer is (b) bC .= cB