I answered this but i couldn’t take multiple pictures. however i found a website with the same answer as me after i answered your question. here : https://www.quora.com/How-do-I-integrate-Integrate-sinxdx-sin-3x+cos-3x
Answer:
c
Step-by-step explanation:
you just multiply in the calculator
C is the answer to your question
x = -9 and x = 8 when y = 0 is the answer
