# What is the range of the function y = 2 sin x?

The range of $\sin x$ is $- 1 < \sin x < 1$ or $- 1 < y < 1$
It implies, $- 2 < 2 \sin x < 2$
This means that the range of $y = 2 \sin x$ is $- 2 < y < 2$