2sin^2(2/A)+cosA=1 Please help me verify

2sin^2(2/A)+cosA=1Please help me verify using identities
1. 1 answer
2. asked by Hannah
3. 336 views
I need to prove that the following is true. Thanks.csc^2(A/2)=2secA/secA-1 Right Side=(2/cosA)/(1/cosA - 1) =
1. 0 answers
2. asked by Dirk
3. 963 views
Verify the identities.Cos^2x - sin^2x = 2cos^2x - 1 When verifying identities, can I work on both side? Ex. 1 - sin^2x - sin^2x
1. 1 answer
2. asked by Shadow
3. 637 views
Please help me how to do this:1) 1 + sina*cosa / (cosa + sina)^2 = 2) sina + cosa / 1- 2sin^2a =
1. 2 answers
2. asked by Evelina
3. 463 views
Verify/prove that:sinAcosA/1-cosA = sin^2/tanA-sinA
1. 1 answer
2. asked by Kid
3. 655 views
verify the identity sin(4u)=2sin(2u)cos(2u)
1. 2 answers
2. asked by stacey graham
3. 3,337 views
verify the identity2sin^2(x/2)+4cos^2(x/2)-3=cos(x)
1. 1 answer
2. asked by cas
3. 311 views
if y=3e^(2x)cos(2x-3) verify that d^2y/dx^2-4dy/dx+8y=0plz help me i tried all i could but it become too complicated for me here
1. 2 answers
2. asked by practising and need help
3. 2,802 views
y=3e^(2x)cos(2x-3) verify that d^2y/dx^2-4dy/dx+8y=0plz help me i tried all i could but it become too complicated for me here
1. 1 answer
2. asked by practising and need help
3. 776 views
verify the following identity:2sinxcos^3x+2sin^3cosx=sin(2x)
1. 0 answers
2. asked by Lynn
3. 607 views