$\sin (\omega t+90)$ is equal to:

E

Editor

Sep 18, 2022

$\sin (\omega t+90)$ is equal to:

Difficulty: Easy

A:

\sin \omega t

B:

\cos \omega t

C:

-\sin \omega t

D:

None

ID: 63273db8ca83163ac3a0ebbf