Question

Find DY/DX. Cos (2x+3).​

Answer 1

Answer:

cos(2x+3)

= -sin(2x+3)(2)

=-2sin(2x+3)

Explanation:

Answer 2

Answer:

dy/dx = -sin(2x+3)(2)

Explanation:

dy/dx =d(cos2x+3)/dx

We know that d(cosx)/dx= -sinx

Similarly

= -sin(2x+3)d(2x+3)/dx

= -sin(2x+3)×2