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The length of a focal chord of the parab...

The length of a focal chord of the parabola `y^(2) = 4ax` at a distance b from the vertex is c. Then

A

`a^(2) =bc`

B

`a^(3) =b^(2)c `

C

`b^(2) =ac`

D

`b^(2)c =4a^(3)`

Text Solution

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The correct Answer is:
D
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