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If the normals at P, Q, R of the parabol...

If the normals at P, Q, R of the parabola `y^2=4ax` meet in A and S be its focus, then prove that `.SP . SQ . SR = a . (SA)^2`.

A

`(SA)^2`

B

`(SA)^3`

C

`a(SA)^2`

D

`a(SA)^3`

Text Solution

Verified by Experts

The correct Answer is:
C
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