- #1
Ryuk1990
- 158
- 0
Homework Statement
f(x) = sinxcosx
Homework Equations
Product Rule: f(x)g(x) = f(x)Dg(x) + g(x)Df(x)
The Attempt at a Solution
I got to sinx(-sinx) + cosxcosx
The answer is supposed to be 0
Would the next step be turning it into -(sinx)2 + (cosx)2?