Verifying Trigonometric Identities...1

[nycmathguy]

Section 5.5

 

[MathLover1]

you just made an error in the first line, should be

(cos^2(x))^2-sin^4(x)=cos(2x)
second line and the rest is correct

 

[nycmathguy]

you just made an error in the first line, should be

(cos^2(x))^2-sin^4(x)=cos(2x)
second line and the rest is correct

Very cool. Thanks.

Check this out:

Railroad Track