Understanding the Signs of Trigonometric Functions in Quadrants

This video explains the proper signs of trigonometric functions by determining the signs of x and y in all four quadrants. It also introduces the concept of reciprocal trig functions and emphasizes the importance of understanding the signs in order to determine the signs of the trig functions. The video provides a simple trig chart mnemonic to remember the positive functions in each quadrant and concludes by reinforcing the understanding of statements involving the signs of trig functions.