SOLUTION: How to prove the identity (sin^3@-cos^3@)/(sin@-cos@) = 1+sin@cos@ @=theta, I couldn't figure out how to use the symbol.

Question 664418: How to prove the identity (sin^3@-cos^3@)/(sin@-cos@) = 1+sin@cos@
@=theta, I couldn't figure out how to use the symbol.
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
How to prove the identity (sin^3@-cos^3@)/(sin@-cos@) = 1+sin@cos@
@=theta
**
(sin^3-cos^3)/(sin-cos)=1+sincos
start with left side
(sin^3-cos^3)/(sin-cos)
difference of cubes
=[(sin-cos)(sin^2+sincos+cos^2)]/(sin-cos)
sin^2+cos^2=1
=1+sincos
verified: left side=right side

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