I need help with the problems, Please help me to solve this.

#### Top Answer

1) 2 1 + e − x ( 1 + x )... View the full answer

- For question2, to find PI, CosX^2=((e^2+e^-x^)/2)^2, here we do square for both side, then we got this. But the answer you give me next is (cosx)^2=(e^2x+e^-2x)/4, I think the you forgot 2 on the right side. Can you check that?
- y648867346
- Jan 13, 2018 at 4:46pm

- And I have a question, for question 1 we got y= 1/2 +e^ −x * (1+x)−e^ −2x, here if we let x=0, y does not equal 0 but the question said y(0)=0.
- y648867346
- Jan 13, 2018 at 5:08pm