4.4 Do Now: State the quadrant in which the angle lies. 1.) 2.)

4.4: TRIG FUNCTIONS OF ANY ANGLE Hw: Pre-Calculus Honors 4.4: TRIG FUNCTIONS OF ANY ANGLE Hw:

Examples from textbook: p.289

The point is on the terminal side of an angle in standard position The point is on the terminal side of an angle in standard position. Determine the exact values of the six trig functions. 19.) (-4, 10)

Examples from textbook: p.289

Reference Angle: Given an angle Reference Angle: Given an angle . is the acute reference angle formed by the terminal side of and the horizontal axis. Reference angles are always positive acute angles. One of the sides of the reference angle is always the horizontal axis.

Reference Angle Examples. Sketch the angle given. Find and sketch the reference angle. 1.) 208o 2.) -245o 3.) 4.) -3.68

Do Now: p.290

Use a calculator to evaluate the trig function. P.290

p.290

p.290 in textbook

Real-world application: p.291

Real-world application: p.291