Prove it is an identity. (sin^2x)/(tanx)=sinxcosx

prove the following identity cos^4X - sin^4X = 1-2sin^2X

prove this identity: sec(y) - cos(y)= tan(y)sin(y) THANK YOU!!

Prove each identity: a) 1-cos^2x=tan^2xcos^2x b) cos^2x + 2sin^2x-1 = sin^2x I also tried a que...

Prove identity. Sec(pi-x)=-sec x

Prove the following identity: 1/tanx + tanx = 1/sinxcosx I can't seem to prove it. This is my...

Prove the identity Sin^3X sinx*cos^2X=tanx/cosX

Prove the following identity tan x cos x/sin x=1/sin x cos x

Prove the identity: (sin⁡(2x-y)+sin⁡y)/(cos⁡(2x-y)+cos⁡y )=tan⁡x

Prove the following identity. Show all steps clearly. the ----- indicates that it is a fraction....

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