1. ## Re: Two Identities

hey guyx...i have a question...how i can solve this..

(sinx cosx)/[(1+cosx)(1-cosx)]=cotx

2. ## Re: Two Identities

Originally Posted by nisham209
hey guyx...i have a question...how i can solve this..

(sinx cosx)/[(1+cosx)(1-cosx)]=cotx

That said, I suggest that you multiply out the two binomials in the denominator on the left side....

what is (1 + cos x)(1 - cos x)??

Then, look at the fundamental identities to see if there's something you could use to replace that expression.

Having done that, see if you can simplify the left side.

Please show us what you've done....

3. ## Re: Two Identities

Hey guys how do u solve this: cos(theta)cot(theta)/1-sin(theta) -1=csc(theta)

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•