Question

derivatives of trig.

Answer 1

im afriad to open that attachment, does it have a virus

Answer 2

are you kidding me =)) no man. Don't worry.

Answer 3

i use a mac.

Answer 4

I don't use a mac though

Answer 5

its the same thing.

Answer 6

YO CYTER. Still here? i got\[\sin 2\theta + h \cos 2\theta\] for the derivative but i don't know how to make that equal to zero