This is for my trig class. Thanks for the help!
This is for my trig class. Thanks for the help!
This is for my trig class. Thanks for the help!
1) given the double angle identity for cosine: cos2θ=cos2θ-sin2θ Prove: cos3θ = cos3θ - 3cosθsin2θ and: cos4θ = cos4θ - 6cos2θsin2θ + sin2θ 2)...
2sin^2x - 1÷ sinxcosx = tanx-cotx
cosx = (1- tan^2 x/2) / 1 + tan^2 x/2) Completely stuck.
Prove sec2x = 1 + tan2x I did R.H.S = 1 + sin2x / cos2x = 1 + (1 - cos2x) / (1 - sin2x) = 1 + cot2x = ??? I think I'm doing it right,...
∫1 1 dx =¶ + 1 0 (1+x2)2 8 4
Prove that 1 +sin b -cos b=2sin 1 b cos 1 b +sin 1 b ...
Jay is 120 meters from the base of a building and Mary is 40 meters from the base of the building. Jay's angle of elevation when looking at the top of the building is X and Mary's is 2X. What is the...
(1-cos^2x)(cot^2+1) = 1
simplify simplify simplify simplify ...............
sec^2(x)-sec^2(x) csc^2(x)
Secx-tanxsinx=1/secx
Prove the Trigonometic identity
csc2(x/2)=2sec(x) Please help me solve for x.
Directions ask to prove the identity
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..
Trig Identies