Trigonometric Functions, such as sine, cosine, and tangent, relate the angles of a right triangle to the ratios of its sides.

For most of previous years, you used Degrees. From this point on, we mostly use Radians.
1 Radian is equal to the arclength drawn by a radius of one, which is approximately 55 degrees.

The Unit Circle is a circle with a radius of 1 centered at the origin of a coordinate system. It is used in trigonometry to define the values of trigonometric functions for all angles. The coordinates of points on the unit circle are directly related to the cosine and sine of the corresponding angles.

Trigonometry helps solve problems involving triangle measurements, such as finding side lengths or angles.
It has applications in various fields and is used to understand distances, heights, angles, and periodic patterns.

Trigonometry helps solve problems involving triangle measurements, such as finding side lengths or angles.
It has applications in various fields and is used to understand distances, heights, angles, and periodic patterns.

Trigonometric Equations are similar to other equations you have solved previously. Just this time, the amount of possible solutions isn't straightforward.

Trigonometric Equations are similar to other equations you have solved previously. Just this time, the amount of possible solutions isn't straightforward.

Trigonometric Equations are similar to other equations you have solved previously. Just this time, the amount of possible solutions isn't straightforward.
Especially when dealing with different domains.

Trigonometric Equations are similar to other equations you have solved previously. Just this time, there are technically infinite solutions.
These functions are extended to all real numbers and have periodic behavior.