Question

simplify
cosx-cosx sin^2x

Answer 1

factor and replace :P
cosx(1-sin^2x)
cosx(cos^2x)

Answer 2

cosx(1-sinx^2)
cosx(cosx^2)
=cosx^3

Answer 3

thanks lol i feel silly!

Answer 4

That's how I felt when I was in pre-calc class.

Answer 5

could you help with a few more? ill try to do it my self but i'm just so worn out today to think abstractly without assistance.

Answer 6

Abstractly...HAHA...but ok that's what the site is for :)

Answer 7

thanks! cscx cotx / secx

Answer 8

convert

Answer 9

cot^2. but don't trust me, wait for other

Answer 10

to sine and cosine?

Answer 11

66 is right.. as always

Answer 12

:l

Answer 13

really?? thanks,Lui

Answer 14

how did you get that?

Answer 15

Use Wolfram Alpha. xD