Question

Calculus Help
Fan + Medal

Answer 1

@Photon336 Can you help me on this one?

Answer 2

Let me attempt this:

\[\frac{ dy }{ dx } = 4\sin(x) \]

\[dy = 4\sin(x)*dx \]

\[\int\limits dy = \int\limits 4\sin(x)*dx\]

\[y = C-4\cos(x)\]

Answer 3

Alright, cool, thats what I got the first time around too.

Answer 4

so that's actually how you would get y given the derivative

Answer 5

\[y(\frac{ \pi }{ 2 }) = 2 \]

Answer 6

\[C-4\cos(\frac{ \pi }{ 2 }) = 2 \]

all you need to do is solve for C

Answer 7

C=2

Answer 8

So the answer is B. 2-4cos(x) Correct?

Answer 9

I don't have a calculator but if you plug in pi/2 it should give you 2

Answer 10

Awesome. Could you help me with this one, like setting it up?