Question

Evaluate ∫ cos2x dx .

Answer 1

nvm got it

Answer 2

Okay :)

Answer 3

im just taking college quizes to prepare me for it

Answer 4

If you got 1/2 sin(2x)+C when you're right

Answer 5

then you're right*

Answer 6

x/2
+(sin 2x)/4
+ c is what i got and said i was correct

Answer 7

I believe that's the same answer as mine in a different form

Answer 8

I let u=2x

This means du=2dx so 1/2du=dx

So 1/2 integral cos u du =

1/2 (sinu) +C

1/2 sin(2x)+C

Answer 9

Okay thank you.

Answer 10

You're welcome :)