Work Step by Step
Please note that the minimum value of the function $f(x)=A \sin x$ is $-|A|$. So the minimum value of the function $y=2 \sin x +1$ is $-|2|+1=-1$.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.