verify the identity: sin(x+y)-sin(x-y)=2cosx siny

verify the identity:sin(x+y)-sin(x-y)=2cosx siny
1. 1 answer
2. asked by stacey graham
3. 6,426 views
Verify each identitysin^x+siny/sinx-siny=tan(x+y/2) (times) cot(x-y/2)
1. 0 answers
2. asked by angel
3. 516 views
Okay, I've been getting some of these, but I can't seem to verify this identity... any help? Here's the problemSin(x+y) +
1. 2 answers
2. asked by Alex
3. 725 views
How do I prove that sin(x+y)-sin(x-y)=2cosx siny
1. 1 answer
2. asked by Rene
3. 2,548 views
1.Verify the basic identity. What is the domain of validity? Cot θ = cos θ csc θ 2. Verify the identity. Justify each step.
1. 1 answer
2. 105 views
Please complete all questions1. Verify the basic identity. What is the domain of validity? Cot θ = cos θ csc θ 2. Verify the
1. 1 answer
2. 90 views
Having trouble verifying this identity...cscxtanx + secx= 2cosx This is what I've been trying (1/sinx)(sinx/cosx) + secx = 2cosx
1. 2 answers
2. asked by Alex
3. 708 views
need help don't understand how to do this....1.Verify the identity cot(θ-( π/2)= -tan θ 2. Verify the identity tan θ + cot
1. 2 answers
2. asked by Anonymous
3. 540 views
sinx+ siny/ (cosx+cosy)= tan 1/2 (x+y)prove this identity
1. 0 answers
2. asked by JK
3. 1,293 views
Prove the identitysin(3 pi /2 + x) + sin(3pi/2 -x) = -2cosx
1. 1 answer
2. asked by Rick
3. 1,106 views