Question

differention of cos 3x+4

Answer 1

Cos 3x+4

dy/dx =-3sin .

Answer 2

Answer:

Step-by-step explanation:

let`s assume 3x+4 =x.......

then,

cosx

[we know that cosx=  - sinx]

so, dy/dx =  -sinx

now put the value of x, we have,

dy/dx = -sin(3x+4)

dy/dx = -sin( 3)