I can't solve this :S

cosxsinx/tanx = 1 - sin^2x

thanks :D

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- May 17th 2011, 10:07 AMkatiethegreattrig identity help...
I can't solve this :S

cosxsinx/tanx = 1 - sin^2x

thanks :D - May 17th 2011, 10:10 AMTheEmptySet
- May 17th 2011, 10:20 AMkatiethegreat
I don't know why....but i still don't get it :/

- May 17th 2011, 10:21 AMTheEmptySet
- May 17th 2011, 10:33 AMkatiethegreat
both :/

- May 17th 2011, 10:43 AMmasters

Hi katiethegreat,

Maybe if you see it like this, it would help:

He just used the identity:

You should be able to finish now if you know