1.9 Evaluating Trigonometric Functions

1.9 Evaluating Trigonometric Functions - 1.9 Evaluating...

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Unformatted text preview: 1.9 Evaluating Trigonometric Functions Monday, September 12, 2011 7:42 AM Agenda: 1. Homework Roll 2. Lesson: 1.9 Evaluating Trigonometric Functions ________________________________ Homework Roll Roll HW# 1,2 11 3,4 12 5,6 13 ________________________________ Lesson: 1.9 Evaluating Trigonometric Functions Goal: Evaluate Trig Functions Questions to ask yourself • Are you given a ratio or angle? ○ If you are given an angle, use trig functions to find the ratio! ○ If you are given a ratio, use inverse trig functions to find the angle! • Are you given an angle in degree or radians? ○ Make sure your calculator is set to the right angle measurement! ________________________________ Examples Find each value. Round to 4 decimal places. Find the value. Round to 4 decimal places. Ch_1 Page 1 ______________________________ We will use inverse trig functions ( [2nd][trig function] )to take a ratio and find and angle measure θ Find the measure of each angle , Ch_1 Page 2 ...
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