1. 7.5 Values of Trig Functions

2. Trig Values for Non-special Angles Use calculator to find value & round to 4 digits * make sure calc is in DEG mode * angle first or cos first depends on calc Calc doesn’t have cot but has tan Ex 1) Ex 2)

3. Trig Values for Non-special Angles Change to decimal degrees No degree symbol → Radians!! Change mode on calc Ex 3) Ex 4)

4. Ex 5) If 0° ≤  < 360°, find the angle  in QI such that, round to nearest tenth degree Finding Angles Use inverse sin to find  angle trig value

5. Ex 6) If 0  ≤  < 360 , find  to nearest tenth of a degree if cos  = – 0.9641, QIII QIII 180  First, find the related angle Change trig value to positive 15.4 

6. Ex 7) Find  in Q IV to nearest tenth degree such that cot  = – 8.028 QIV Change to (+) for ref angle 360  7.1 

7. Homework #716 Pg. 418 1 – 35 odd