At the point of intersection of the rect...

At the point of intersection of the rectangular hyperbola `xy=c^2` and the parabola `y^2=4ax` tangents to the rectangular hyperbola and the parabola make angles `theta` and `phi` , respectively with x-axis, then

A

`theta=tan^(-1)(-2tan phi)`

B

`phi=tan^(-1)(-2tan theta)`

C

`theta=(1)/(2)tan^(-1)(-tan phi)`

D

`phi=(1)/(2)tan^(-1)(-tan theta)`

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The correct Answer is:

A

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