find the critical points if any of the following function on the given interval/ Determine the absolute values of f on the given interval. f(x)= sin x on [ -5pi/3 , -pi/2]

Question

anonymous · Answer

I started solving the problem and i got the derivative which is cos x and then i set it equal to 0. which gave me - 3pi/2 for the critical point and i don't know where to go from there.

phi · Answer

your interval is "closed"  meaning it includes the limits.  In other words,  -pi/2 is also a critical point
because cos (-pi/2)= 0

I am not sure what they mean by 
Determine the absolute values of f on the given interval.
that seems to be asking for a graph of the absolute value of sin(x) over the interval, which is not related to the critical values.

anonymous · Answer

i can attach the picture from the homework assignment directly..

anonymous · Answer

attachment

anonymous · Answer

I figured it out.. Thank you..