How Do You Differentiate K sin(Gx + 5)?

[imy786]

Homework Statement

if y = K sin(Gx + 5)

what is dy/dx

Homework Equations

y=sin x

dy/dx = cos x

The Attempt at a Solution

y = K sin(Gx + 5)

dy/dx = KG cos (Gx +5) (1)

or

dy/dx = KG cos GX + 5 (2)


i think it is (1)

is this correct or it is non of these (other)?

 

[arildno]

Why would you think it is (2) in the first place?
(1) is certainly correct, but your doubt indicates you are not quite familiar with the rules of differentiation yet.