Find the intervals in which the function f(x) = sin^4x + cos^4x is increasing or decreasing where the range of x is ( 0, pie/2) .
the given function is
differentiating wrt x:
we have :
therefore
so f(x) is decreasing on
f'(x)>0 for
so f(x) is increasing on
hope this helps you
differentiating wrt x:
we have :
therefore
so f(x) is decreasing on
f'(x)>0 for
so f(x) is increasing on
hope this helps you