tricks to remember trigonometric ratios of quadrantal angles
Hello friends, I am Anil Kore welcome to my blog mathstips4u. In this post I am going to tell you some tricks to remember trigonometric ratios of quadrantal angles. Quadrantal angles are There is a separate video on quadrantal angles. let us have a quick look on quadrantal angles. If the terminal arm lies on positive X-axis then the measure of the angle is 0 degree . If the terminal arm lies on positive Y-axis then the measure of the angle is 90 degree . If the terminal arm lies on negative X-axis then the measure of the angle is 180 degree . If the terminal arm lies on negative Y-axis then the measure of the angle is 270 degree . If the terminal arm takes a complete rotation lies on positive X-axis then the measure of the angle is 360 degree . We shall see the graph of sin θ and cos θ. Now we shall see how to remember trigonometric ratios of quadrantal angles. We have to remember sin 0 degree ...