[Pre-Calculus/Calculus] Application of derivatives with trigonometric function

Continue the short series. This time we are having the trigonometric function (sine function) and analyzing it by looking for the domain, range, relative extrema, and absolute extrema without using the graph of the function. In this video we have to use the derivative of the sine function, which is a spoil to students who have not taken nor are not yet taking Calculus 2 course.