What is the derivative of f(x)=sin(−x+π)−sin(x)?
1 Answer
Dec 22, 2015
0
Explanation:
sin(t+π)=−sin(t)
sin(−t)=−sin(t)
So:
f(x)=sin(−x+π)−sin(x)=−sin(−x)−sin(x)
=sin(x)−sin(x)=0
and
ddx0=0
