79 Answered Questions for the topic Trigonometry Identities
Trigonometry Identities
03/19/13
show that cos(A-B) - cos(A+B) = 2sinA sinB
Anybody have an idea how to solve that question... think needs to simplify first and use identities to solve.. but cant even start it..
please any help is welcome..
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Trigonometry Identities
01/27/13
(TanX)-1)/(Tan(X)+1) = (1-cot(X))/(1+cot(X))
Trig Identies
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Trigonometry Identities Pre Calculus
11/26/12
1/1-cosx+1/1+cosx=2csc^2x
Prove the Trigonometic identity
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Trigonometry Identities Pre Calculus
11/24/12
secx-tanxsinx=1/secx
Directions ask to prove the identity
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