Math Diagnostic23#

The derivative of $x^5\cos \left(9x\right)$ is

Part 1#

Answer Section#

• $-9x^5\sin \left(9x\right)+5x^4\cos \left(9x\right)$

• $-9x^5\sin \left(9x\right)$

• $5x^4\sin \left(9x\right)$

• $9x^5\cos \left(9x\right)+5x^4\sin \left(9x\right)$

• Don’t Know

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.