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If the circles x^(2) + y^(2) + 2ax + cy...

If the circles ` x^(2) + y^(2) + 2ax + cy + a = 0 and x^(2) + y^(2) - 3ax + dy - 1 = 0 ` passes through P and Q for

A

exactly one value of a

B

no value of a.

C

infinitely many values of a.

D

exactly two values of a.

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The correct Answer is:
B
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