**How To Find Exact Value Of Trig Functions Radians**. 600° = 60° when considering trig functions. Now you can use this triangle to quickly get the sin, cos and tan of 30° and 60°.

In trigonometry some values of sin, cos and tan are “nice” for example sin 30° = ½, tan 45° = 1; We are using all that we have learned in this chapter. 1 2 a b \frac{1}{2} ab 2 1 ab sinc.

Table of Contents

### Use Special Triangles Or The Unit Circle.

In this section we see examples of how to use radians instead of degrees when finding the values of sin, cos, tan, csc, sec and cot of angles. Now you can use this triangle to quickly get the sin, cos and tan of 30° and 60°. Well the unit circle definition of trig functions in this angle, this pi over four radians, is forming an angle with the positive x axis.

### Let Us Assume That We Want To Find The Exact Value Of F(X), Where F Is Any Of The Six Trigonometric Functions Sine, Cosine, Tangent, Cotangent, Secant And Cosecant.

Trig functions of angles outside the range 0° to 90° here are diagrams of an angle in each of the four quadrants of a circle, snapshots from the excellent how the trigonometry functions are related from the wolfram demonstrations project by c. Converting between degrees and radians. 1 2 a b \frac{1}{2} ab 2 1 ab sinc.

### And Where It's Terminal Ray Intersects The Unit Circle, The X And Y Coordinates Of This Point Are What Specify The Cosine And Sine.

We are using all that we have learned in this chapter. Function sinθ (sine) cosθ (cosine) tanθ (tangen) sinθ cosθ tanθ cscθ (cosecant) secθ. Trigonometric ratios of angles in radians.

### Go Back And Review This Trigonometric Functions Chapter.

Find the exact value of trigonometric ratios. Radian measure and arc length. As the math page nicely points out, the reason why inverse trig functions are commonly referred to as arcfunctions is because we are looking for the arc (i.e., the angle in radians) whose sine, cosine or tangent is the given value.

### How To Find The Exact Trigonometric Values:

Astc rule in trigonometry (all students take calculus) 6. We can find those associated with the angles 30°, 45° and 60° using sohcahtoa on isosceles and equilateral triangles sin, cos and tan values. Radians and the trigonometric ratios.