The Unit Circle Today we will learn the Unit Circle and how to remember it.

SINE (sin) the trigonometric function that is equal to the ratio of the side opposite a given angle (in a right triangle) to the hypotenuse. First is SINE. Say definition. This is SINE graphed.

COSINE (COS) the trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse. Next is COSINE. Say definition. This is how cosine is graphed.

TANGENT (Tan) a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point. This is tangent. Definition. This is how a tangent line is graphed

EQUATIONS These are the equations you would use for fining the sin, cos, and tan for a triagle.

Secant (sec) the ratio of the hypotenuse to the shorter side adjacent to an acute angle (in a right-angled triangle); the reciprocal of a cosine. Secant. Define. This is how it is graphed.

Cosecant (CSC) the ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine. Cosecant. Define. This is how a cosecant line is graphed

Cotangent (cot) (in a right-angled triangle) the ratio of the side (other than the hypotenuse) adjacent to a particular acute angle to the side opposite the angle. Cotangent. Define. This is how a cotangent is graphed.

This video is a song of how to remember the different degrees and radians of a unit circle.