Prove this identity

(cos è - 1) / (cos^2 è) =

sec è - sec^2 è

I have a question when you simplify the secant in terms of cosine. Would you cross multiply but then again there's the subtraction sign there instead of a multiplication sign? then would you multiply by the lcd to get the demoniator to be the same for both sides, im really confused, please help me, thanks

Ask a New Question or answer this question.

Similar Questions

Prove the identity: cos^4(x)-sin^4(x)=1-2sin^2(x).with explanationim confused on this one cause of the 4th power of the sine.
1. 1 answer
Select all the true statements about identities.A) You may use proven identities to prove other identities. B) An identity is
1. 0 answers
Prove the identitysin(x+y+z)+sin(x+y-z)+sin(x-y+z)+ sin(x-y-z) = 4 sin(x)cos(y)cos(z) This identity is so long and after i tried
1. 5 answers
Prove this identity using the product-to-sum identity for sine:sin^2 x=1-cos(2x)/2
1. 1 answer