Verify each identity sin^x+siny/sinx-siny=tan(x+y/2) (times)

Verify each identitysin^x+siny/sinx-siny=tan(x+y/2) (times) cot(x-y/2)
1. 0 answers
2. asked by angel
3. 504 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. 709 views
Sin(X-y)sin(x+y)=sin^2 x - sin^2 ywork on one side only...so i worked on the right =(sinx-siny)(sinx+siny) does that equal
1. 1 answer
2. asked by Alice
3. 2,640 views
Sin(X-y)sin(x+y)=sin^2 x - sin^2 ywork on one side only...so i worked on the right =(sinx-siny)(sinx+siny) does that equal
1. 1 answer
2. asked by Alice
3. 620 views
verify the identity:sin(x+y)-sin(x-y)=2cosx siny
1. 1 answer
2. asked by stacey graham
3. 6,420 views
sinx+ siny/ (cosx+cosy)= tan 1/2 (x+y)prove this identity
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2. asked by JK
3. 1,282 views
How do I get (sinx cosy + cosx siny) (cosx cosy + sinx siny) in the form of 1/2(sin2x + sin2y)?
1. 1 answer
2. asked by Anonymous
3. 673 views
Find y'(x) when cos y - y^2 = 8a) -siny - 2y b) - (1/sin y - 2y) c) 0 d) - (8/cos y - y) So if I implicitly differentiate: y'(x)
1. 2 answers
2. asked by Donna
3. 544 views
find the range ofsin(siny)+cos(siny)
1. 0 answers
2. asked by Anonymous
3. 384 views
Simplify:sin(x-y)cosy+cos(x-y)siny = (sinxcosy-cosxsiny)cosy+(cosxcosy+sinxsiny)siny = ??? What do I do next??? Please Help and
1. 4 answers
2. asked by Anonymous
3. 1,431 views