What are the critical points of a sine and cosine graph

The video tutorial explains critical points in sine and cosine graphs, focusing on X intercepts, maximum, and minimum points. It covers sketching these graphs from 0 to 2π and identifies critical points. The tutorial discusses how transformations affect these points and provides a method to calculate distances between them by dividing the period by four. This understanding aids in plotting graphs accurately despite transformations.

Describe the process of sketching the sine and cosine graphs based on their critical points.

What is the significance of the period in relation to the critical points of sine and cosine graphs?