- #1
Eric Manuel
- 7
- 0
thanks
Last edited:
Jimmy Johnson said:Can you give the entire problem?
what is =cos2xMostlyHarmless said:What is the question? What are you asked to find?
Jimmy Johnson said:Are you forbidden from using a calculator?
Trigonometric functions are mathematical functions that relate the angles of a triangle to the lengths of its sides. The most common trigonometric functions are sine, cosine, and tangent.
Trigonometric functions are used to solve problems involving angles and distances, such as in navigation, engineering, and physics. They also have applications in fields such as music and art.
The unit circle is a circle with a radius of 1 unit, centered at the origin on a graph. It is used in trigonometry to understand the relationship between angles and trigonometric functions. The coordinates of a point on the unit circle correspond to the sine and cosine values of the angle formed by that point with the x-axis.
You can use a calculator or a trigonometric table to find the values of trigonometric functions for a given angle. Alternatively, you can use the definitions of sine, cosine, and tangent to manually calculate the values.
No, trigonometric functions can be used with any type of triangle, not just right triangles. However, they are most commonly used with right triangles because of the relationship between the angle and sides in a right triangle.