Answer
$y'=(1+sinx)\times cos(x-cosx)$
Work Step by Step
First, find the derivative of y and u. Don't forget to apply chain rule for y':
$y'=cosu \times u'$
$u'=1+sinx$
Then plug in u and u' into y':
$y'=(1+sinx)\times cos(x-cosx)$
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.