Find the indefinite integral of the following function. $\int \cos 4 z d z$
A) $\cos 4 z + C$
B) $\frac { \sin 4 z } { 4 } + C$
C) $4 \sin 4 z + C$
D) $\sin 4 z + C$
E) $\frac { \sin 4 z } { 5 } + C$

Question

Quizplus · Accepted Answer

We use the formula $\int\cos(ax)dx=\frac{1}{a}\sin(ax)+C$ with $a=4$ to get $\int\cos 4zdz=\frac{1}{4}\sin(4z)+C$. Therefore, the answer is $\boxed{	extbf{(B)}\ \frac{\sin 4z}{4} + C}$.

Find the Indefinite Integral of the Following Function ∫cos⁡4zdz\int \cos 4 z d z∫cos4zdz

Find the Indefinite Integral of the Following Function $\int \cos 4 z d z$