Question

Critical numbers help? I will reward with a medal!

Answer 1

\[\sin^2x+cosx\]
\[0<x<2\pi\]

Answer 2

Get that derivative? :U

Answer 3

sinx (2cosx -1)

Answer 4

Mmm ok looks good! :)

Answer 5

\[\large\rm \sin x (2\cos x -1)=0\]Apply your Zero-Factor Property\[\large\rm \sin x=0\qquad\qquad\qquad 2\cos x-1=0\]

Answer 6

sine is zero at what angles?

Answer 7

I'm not sure how to get that answer.

Answer 8

Don't remember your trig..? :(

Answer 9

I was horrible at memorizing trig stuff. I enjoyed solving certain types of problems with them, but quite frankly I don't remember much of anything except for a few identities.

Answer 10

Is it a particular formula, or is it just something you'd have to memorize?

Answer 11

Ugh OpenStudy freezing on me again.....

Answer 12

It does that to me a lot.

Answer 13

(this may seem like a stupid question, but which part is sine?

Answer 14

sine is the y-coordinates