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The value of k for which the circles x^2...

The value of k for which the circles `x^2 + y^2 - 3x + ky - 5 = 0` and `4x^2 + 4y^2 - 12x - y - 9 = 0` become concentric is:

A

`1/8`

B

`-1/8`

C

`1/4`

D

`-1/4`

Text Solution

Verified by Experts

The correct Answer is:
D
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