nurse89 Posts: 1, Reputation: 1 New Member #1 Mar 24, 2008, 12:55 PM
Verifying Trig Proofs
Csc X - Sin X= (cot X)(cos) Solve
Please Show Me Step By Step
 ebaines Posts: 12,131, Reputation: 1307 Expert #2 Mar 25, 2008, 09:10 AM
For problems like this it's often best to start by changing the original equation into a form consisting of only sine and cosine. Then simplify as best you can. I'll get you started:

csc x - sin x = 1/(sin x) - sin x.

Now multiply through by sin x/sin x:

[1 - (sin x)^2]/sin x.

You should be familiar with the expression 1 - (sinx)^2 is equal to. Can you take it from here?

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