Values of Trig Functions

**Luckyjoshua** · August 17th 2006, 07:01 AM

Theta=SinInverse(8/17)

Find the values of the 6 Trigonometric Functions.....

Cos, Tan, Cot, Cos, Sec and Sin

**ThePerfectHacker** · August 17th 2006, 07:36 AM

Originally Posted by Luckyjoshua

Theta=SinInverse(8/17)

Find the values of the 6 Trigonometric Functions.....

Cos, Tan, Cot, Cos, Sec and Sin

Here is an easy method,
Since,
$\theta=\sin^{-1}(8/17)$ ,
means that,
$\sin \theta=8/17$
Thus, the sine of an angle in the triangle is 8/17 whenever its opposite side is 8 and hypotenuse 17, that means the remaing side is $\sqrt{17^2-8^2}=\sqrt{289-64}=\sqrt{225}=15$

Code:

       /|
      / |
   17  8
    /   |  
   /    |
  /     |
*-----*
   15

Now use the definitions of the six trigonomteric functions and you get,
$\left\{ \begin{array}{c}\sin \theta=8/17\\ \cos \theta=15/17\\ \tan \theta=8/15\\ \csc \theta = 17/8\\ \sec \theta = 17/5\\ \cot \theta=15/8$

Thread: Values of Trig Functions

LinkBack

Thread Tools

Display

Values of Trig Functions

Similar Math Help Forum Discussions

Help finding values of trig functions.

exact values of trig functions

trig functions and exact values

Values of Trig Functions

help with hw-trig functions and values

Search Tags