f(x) = |sinx| for - π ≤ x ≤ π
g(x) = x^2
1. Find domain and range of h(x)
2. Find an equation of the line tangent to the graph of h at the point where x= π/4
The Attempt at a Solution
It think that h(x) is (|sin x|)^2
so, is domain - π ≤ x ≤ π
here is where I am confused:
if d/dx (sin x) = cos x
is d/dx (|sin x|)^2 = (|cos x|)^2 ?
thanks in advance for the help.