SecA TanA

----- - ----- = 1

CosA Cot A

Please help, I don't know where to start or how to complete this.

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- Nov 9th 2012, 04:42 PMhachm361Prove given identities
SecA TanA

----- - ----- = 1

CosA Cot A

Please help, I don't know where to start or how to complete this. - Nov 9th 2012, 04:50 PMrichard1234Re: Prove given identities
Rewrite everything in terms of sine and cosine.

- Nov 9th 2012, 04:56 PMamillionwintersRe: Prove given identities
Think of the pythagorean identity

See how it can be re-arranged to look like

Now, how are and related?

How are and related? - Nov 9th 2012, 05:45 PMSorobanRe: Prove given identities
Hello, hachm361!

Quote:

Do you know**any**basic identities . . . like these?

. .

If you don't, you need more help than we can offer.

We have: .