Question

What is the period of the function $f\left(x\right)=\sin x$?

• A. $\pi$
• B. $\frac{\pi }{2}$
• C. $2\pi$

Answer 1

The correct option is C

$2\pi$

Recall the period of$f\left(x\right)=\sin x$.

A period is a fixed interval after which the behavior of the function repeats itself.

The sine function repeats its behavior after every $2\mathrm{\pi }$ interval.

Hence, the period of $f\left(x\right)=\sin x$ is$2\pi$.