gaokao 2017 Q3

gaokao · China · national-II-arts Trig Graphs & Exact Values
The smallest positive period of the function $f(x) = \sin\left(2x + \frac{\pi}{3}\right)$ is
A. $4\pi$
B. $2\pi$
C. $\pi$
D. $\frac{\pi}{2}$
The smallest positive period of the function $f(x) = \sin\left(2x + \frac{\pi}{3}\right)$ is

A. $4\pi$

B. $2\pi$

C. $\pi$

D. $\frac{\pi}{2}$