Simplification Through Fundemental Identities

[k_squared]

Homework Statement

(sin³+cos³)/(sin+cos)

Homework Equations

sin²+cos²=1
1 +cot²=csc²
1+tan²=sec²
Are these sufficient?

The Attempt at a Solution

Confusion. Epic confusion. I might have had it yesterday, but the mathematical equivalent of a writers anti-tank roadblock. At best.

Ahhhhhhh, thanks...

 

[Dick]

a^3+b^3=(a+b)*(b^2-ab+a^2). It's a general algebraic identity. Word to the wise.