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Equation of common tangent of parabola y...

Equation of common tangent of parabola `y^(2)=8xandx^(2)+y=0` is

A

`y = 2x +1`

B

`x = y +1`

C

`2x - y + 1 =0`

D

`x + 2y + 1=0`

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The correct Answer is:
A
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