Answer
$y=-cos(x)+C$, valid for all real values
Work Step by Step
Integrate the function to turn $y'$ to $y$. Don't forget an integration constant. $$y'=sin(x)$$ $$y=-cos(x)+C$$ This solution is valid for all real values.
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.