Trigonometric Functions:
Trigonometric functions are functions of angles. They are used to associate the angle of a triangle with the length of the sides of the triangle.
If we have a right triangle with an angle θ
The following examlple are true:
For Example:
Given a right angle θ = 45 ° and knowing that the measure of the hypotenuse is 2, what are the measures of the other two legs?
Using the above formula, we get:
We use a calculator to determine sine 45 ° and cosine 45 °:
Now we can see that the metrics of a and b are equal and the length is:
1.414=2⋅0.707
2⋅0.707=
2⋅0.707=1.414
No comments:
Post a Comment