SOLUTION: Verify the following trig identities 1) sin^2x/cosx=secx-cosx 2) 1+sinx/1-sinx - 1-sinx/1+sinx = 4tanx secx 3) sin^3x+cos^3x = (cosx+sinx)(1-cosx sinx)

Question 914721: Verify the following trig identities
1) sin^2x/cosx=secx-cosx
2) 1+sinx/1-sinx - 1-sinx/1+sinx = 4tanx secx
3) sin^3x+cos^3x = (cosx+sinx)(1-cosx sinx)

Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Verify the following trig identities
1) sin^2x/cosx=secx-cosx

..
2) 1+sinx/1-sinx - 1-sinx/1+sinx = 4tanx secx

..
3) sin^3x+cos^3x = (cosx+sinx)(1-cosx sinx)

note: use sum of cubes formula
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