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Two common tangents to the circle x^(2)...

Two common tangents to the circle `x^(2) + y^(2) = (a^(2))/(2)` and the parabola `y^(2) = 4ax` are

A

`x = pm (y + 2a)`

B

`y = pm (x + 2a)`

C

`x = pm ( y + a)`

D

`y = pm (x + a)`

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The correct Answer is:
D
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