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If y=sinx and x=3t then (dy)/(dt) will b...

If `y=sinx` and `x=3t` then `(dy)/(dt)` will be

A

`3cos(x)`

B

`cosx`

C

`-3cos(x)`

D

`-cosx`

Text Solution

Verified by Experts

The correct Answer is:
A
`y=sinx`,`x=3t`
`(dy)/(dx)=cosx`,`(dx)/(dt)=3`
`(dy)/(dt)=(dy)/(dx)xx(dx)/(dt)=3cosx=3cos(3t)`
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