Question

How would I find the derivative of this:
Find f(x) = x^2 + 3 sin x

Answer 1

Use the power rule on x^2. 2x^(2-1) = 2x. Then let D3sinx be (3)Dsinx. The derivative of sinx is always cosx. So you have 3cosx. Therefore, 2x + 3cosx! This site should help you with the derivatives of sin, cos, and such: http://www.sosmath.com/calculus/diff/der03/der03.html

Answer 2

Does that help?

Answer 3

a lot thanks!

Answer 4

You're welcome!

Answer 5

2x+3cosx bcoz x^n gives us nx^(n-1)and3cosx i have solved with help of product rule