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If x=m y+c is a normal to the parabola x...

If `x=m y+c` is a normal to the parabola `x^(2)=4 a y`, then the value of `c` is

A

`-2 a m-a m^(3)`

B

`2 a m+a m^(3)`

C

`-(2 a)/(m)-(a)/(m^(3))`

D

`(2 a)/(m)+(a)/(m^(3))`

Text Solution

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The correct Answer is:
A
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