# 6 Basic Trigonometric Functions

In this tutorial the students will learn about the 6 Basic Trigonometric Functions. They will also see how the functions relate to the Unit Circle and Right Triangles. Lastly, the students will also be introduced to the Pythagorean Identities.

# Key Skills

## Pythagorean Identities

sin²x + cos²x = 1 1 + cot²x = csc²x tan²x + 1 = sec²x

## Trigonometric Identities

1/cos(x) = sec(x) 1/sin(x) = csc(x) tan(x) = sin(x)/cos(x) 1/tan(x) = cos(x)/sin(x) 1/tan(x) = cot(x) x = cos (Θ) y = sin (Θ) y/x = tan (Θ) x/y = cot (Θ)

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