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The normal at a general point (a, b) on ...

The normal at a general point (a, b) on curve makes an angle `theta` with x-axis which satisfies `b(a^(2)tan theta - cot theta)=a(b^(2)+1)`. The equation of curve can be

A

`ye^(x^(2)//2)+c`

B

`log(ky^(2))=x^(2)`

C

`y=ke^(x^(2)//2)`

D

`x^(2)-y^(2)=k`

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The correct Answer is:
B,C,D
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