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Let PQ be a focal chord of the parabola ...

Let PQ be a focal chord of the parabola `y^(2)=4ax`. The tangents to the parabola at P and Q meet at point lying on the line
`y=2x+a,alt0`.
The length of chord PQ is

A

7a

B

5a

C

2a

D

3a

Text Solution

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The correct Answer is:
B
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