Basic Trig Functions:

Many problems in calculus can be solved with an understanding of the basic trigonometric functions shown here.

In trigonometry, angles are defined either in degrees or in radians, where 180° = Π radians.

All basic trig functions start off with the equation of a circle: ${x}^{2}+{y}^{2}={r}^{2}$.

The key trigonometric functions are

• sine
• cosine
• tangent
• cotangent
• secant
• cosecant

Trigonometric Functions