simplify sin7x-sin3x as a product

simplify sin7x-sin3x as a product of trig functions.
1. 1 answer
2. asked by casey
3. 927 views
the expression cos4x cos3x + sin4x sin3x is equivalent towhich one of the following is the answer: 1) sinx 2) sin7x 3) cosx 4)
1. 4 answers
2. asked by Rony
3. 3,972 views
y = e^2xsin3x Find the derivative.So I used the product rule and I got sin3x(e^2x)+cos^3x(e^2x). But the actual answer is
1. 1 answer
2. asked by Samantha
3. 1,194 views
If (e^x)(sin3x)=Im ((e^x)(e^i3x))integrate (e^x)(sin3x) I get the answer(e^x)(cos3x-3sin3x) +C My book gets the answer
1. 0 answers
2. asked by Tom
3. 663 views
use an appropriate half-angle formula to find the exact value ofthe expression.tan22.5 write the product as a sum sinxsin5x
1. 1 answer
2. asked by Anonymous
3. 669 views
Express the following as a product containing only sines and/or cosines.sin9x−sin7x
1. 1 answer
2. asked by Daemon
3. 1,306 views
Express the following as a product containing only sines and/or cosines.sin9x−sin7x
1. 1 answer
2. asked by Daemon
3. 556 views
Prove By induction that sinx + sin3x + sin5x +.... Sin(2n-1) =sin^2(nx)/sin3x
1. 2 answers
2. asked by Joel
3. 1,746 views
given (e^x)sin3x = Im((e^x)(e^i3x)) Integrate (e^x)sin3x.dxYou can just take the imaginary part of the integral of
1. 0 answers
2. asked by Tom
3. 636 views
sin3x=(sinx)(3-asin^2x)Wow! is that arcsin^2(x) ??? are we solving for x? or is it proving the identity? proving the identity
1. 0 answers
2. asked by abdo
3. 689 views