What is the derivative of xsinx
What is the derivative of
Answer & Explanation
Which is the product of two functions, and so we apply the Product Rule for Differentiation:
I was taught to remember the rule in words; "The first times the derivative of the second plus the derivative of the first times the second ".
If you are new to Calculus then explicitly substituting u and v can be quite helpful, but with practice these steps can be omitted, and the product rule can be applied as we write out the solution.
This is a function which is in the form,
Finally found the answer to this difficult question, I'm happy