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The equation of the common tangent of th...

The equation of the common tangent of the curves `x^(2)+4y^(2)=8 and y^(2)=4x` is :

A

`x-2y-4=0`

B

`x-2y+4=0`

C

`2x+y=4`

D

`2x-y+4=0`

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The correct Answer is:
B
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