Question

Calcule as derivadas:
a)f(x) = sen² x + cos² x
b)f(x) = e² cos 3x
c)f(x) = sen² (x/2).cos² (x/2)

Answer 1

sin^2x+cos^2x=0   f(x) = e² cos 3x = -3e^2sin(3x)  =d/dx(sin^2(x/2).cos^2(x/2))=sin^2(x/2).(-(sin(x))/2)+(sin(x))/2.cos^2(x/2)