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If the circles x^2 + y^2 + 2ax + cy+ a =...

If the circles `x^2 + y^2 + 2ax + cy+ a = 0` and `x^2 + y^2 - 3ax + dy - 1 = 0` intersect in two distinct points P and Q, then the line 5x + by - a = 0 passes through P and Q for :

A

no value of a

B

exactly one value of a

C

exactly two values of a

D

infinitely many values of a.

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The correct Answer is:
A
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MODERN PUBLICATION-CIRCLES AND SYSTEMS OF CIRCLES -MCQs LEVEL - II
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  16. The point diametrically opposite to the point P (1, 0) on the circle x...

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