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The tangents to the parabola y^2 = 4ax f...

The tangents to the parabola `y^2 = 4ax` from an external point P make angle `theta_1 and theta_2` with the axis of the parabola, such that `tantheta_1 + tantheta_2 =b` where b is constant. Then p lies on

A

y=bx

B

y = x+b

C

y = x/b

D

y + x =b

Text Solution

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The correct Answer is:
A
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