**The build-up of trigonometric functions:**

**If you know two intersection points, with the same y-value that that is 2/4 of the period**

**Periodic function:**

f(x) = f(x+T)

A function that repeats itself

Ex.

(Trigonometric functions are **all periodic**)

**Period:**

1 up and 1 down

**Graphing of Trigonometric functions:**

Amplitude is pretty easy to graph as the first point is 1, so simply just multiply the amplitude by the y-intercept

**Even and Odd properties of trigonometric functions:**

Sin(x) | Odd |

Cos(x) | Even |

Tan(x) | Odd |

Csc(x) | Odd |

Sec(x) | Even |

Cot(x) | Odd |

**Inverse Trigonometric Functions:**

They give you the angle from the side ratios of Sin, Cos, Tan, Csc, Sec, and Cot.

## No Responses