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What is the value of t such that P(t) a...

What is the value of t such that P(t) and Q(3) are the end points of a focal chord of a parabola `y^2 = 4ax ` ?

A

`t = 3`

B

`t =- 3`

C

`t =""^(-1)//_3`

D

`t =""^(1)//_3`

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