unit circle

unit circle   Dan united thai nation party

This trigonometry tutorial video explains the unit circle and the basics of how to memorize it It

The equation for the unit circle is x2+y2=1 So if we know one of the two coordinates of a point on the unit circle, we can substitute that Using the right triangle and the Pythagorean Theorem, we can see that x2 + y2 = 1 Thus, the equation of the unit circle is x2 + y2 = 1

มนัญญา ลิ่มเสถียร Defining Sine and Cosine Functions from the Unit Circle The sine function relates a real number t t to The Unit Circle is a circle with a radius of 1 Being so simple, it is a great way to learn and talk about lengths