First slide

Integration

Question

If y = 4cos4x find $\int y d x$

Moderate

A

sin 4x + C
B

cos 4x + C
C

4sin 4x + C
D

–sin 4x + C

Solution

$\begin{array}{l} y = 4 \cos 4 x \\ L e t \\ 4 x = t \\ 4 d x = d t \\ d x = \frac{d t}{4} \\ \int y d x = 4 \cos t \frac{d t}{4} \\ \int 4 \cos t \frac{d t}{4} = \sin t + c = \sin 4 x + c \end{array}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App