Unit Circle Revisited - Example 4

A trigonometric function is a function of an angle. The angle may be in radians or in degrees. The trigonometric functions are commonly defined for angles in the range –90° to +90°. The commonly-used trigonometric functions are sine (sin), cosine (cos), tangent (tan), cotangent (cotan), secant (sech), and cosecant (cosech). The inverse trigonometric functions are the arcsine (arcsin), arccosine (arccos), arctangent (arctan), arccotangent (arccotan), arcsecant (arccosec), and arc cosecant (arccosech).

Recommended Practical Videos

01:05

Sanchit G.

Use a graphing calculator to solve each inequality. Write the solution set in interval notation. See Using Your Calculator: $$ \frac{x+3}{x-2}>0 $$

02:17

Supratim R.

Complete the table by finding the opposite and the absolute value of the given numbers. (TABLES NOT COPY)

00:51

Julie S.

Factor each perfect square trinomial completely. See Examples 8 through 11. $2 n^{2}-28 n+98$

00:35

Amy J.

Graph each linear inequality. See Examples $I$ and $2 .$ See the strategy for Graphing a Linear Inequality box on page 183. $$x-y>0$$

Recommended Quiz

Recommended Books

Elements of Modern Algebra 8th

Elementary Linear Algebra

Prealgebra Demystified

Intermediate Algebra

Prealgebra 8th

Intermediate Algebra: Connecting Concepts through Applications 2nd

Video Transcript

point p, which is the coordinates 0.6 and 0.8 to find the sign and co sign of an angle that is drawn you with this point. Uh, this point is actually going allow the terminal side of the angle, which means, um that it's the side that's moving and it's gonna that means there's gonna be an r. It would equal one. We can get our sign and cosign from our points. Our son is r y coordinate. So that's gonna be 0.8 and our cosign is our X coordinate, which will be 0.6.