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If normal the curve y=f(x) is parallel t...

If normal the curve y=f(x) is parallel to X-axis, then correct statement is

A

`(dy)/(dx)=0`

B

`(dx)/(dy)=0`

C

`(dx)/(dy)= infty`

D

`(d^(2)x)/(dy^(2))=-(dy)/(dx)`

Text Solution

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The correct Answer is:
B
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