Can anyyone please help me understand proving trig identities, or at least if you could help in any type of trig stuff... :confused:

Yes, most likely, if you would post a problem.

You need to know your formulae and apply them to solve your proof problem. The thing is to 'see' how to solve it. Don't worry, it'll come with practice.

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Originally Posted by galactus

Yes, most likely, if you would post a problem.

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(sinx+1)/cosX+cotX=tanx
trig identity proof
and
let tan(theta)=5/12 with (theta) in Q I
find sin2(theta)
are the two problems that I can't get

Is that

I believe it is.

Change the cot(x) on the left in the denominator to

Then, simplify and factor a little. You will see another 1+sin(x) terms and they will cancel.

The tan will reveal itself as