Question

differentiate tan^3x​

Answer 1

Answer:

$<b>$

Step-by-step explanation:

use teh chain rule. dydx=dydududx.

y=tan3x.

u=3x

⇒d udx=3.

:y=tanu

⇒dydu=sec2u.

dydx=sec2u×3.

Answer 2

Answer:

$\sec {}^{2} x = 3 \tan \: x \: \sec {}^{2} x$

refer to the attachment please!!!