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Lesson 14.4 - Inverse Trig Functions

Lesson 14.4 - Inverse Trig Functions. A DO NOW: If B is right angle, find the measure of angle C and angle A. 24 25 B C 7 . 14.4 Inverse Trig Functions. 1. Solve for if a. Arcsin b. a rcsin.

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Lesson 14.4 - Inverse Trig Functions

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  1. Lesson 14.4 - Inverse Trig Functions A DO NOW: If B is right angle, find the measure of angle C and angle A. 24 25 B C 7

  2. 14.4 Inverse Trig Functions 1. Solve for if a. Arcsin b. arcsin Only ONE solution INFINITE Number of solutions!

  3. Why only ONE solution?Arcsin is a FUNCTION 2. Arcsin A function must have only ONE output for EACH INPUT!! Domain - possible “input” (x) values for a function Range – possible “output” (y) values for a function

  4. Ranges (Outputs) of Inverse Functions 3. Find Arctan (1)= 4. Find Arcsin (.88) = 5. Find Arctan(tan(-45°)) 6. Find Arccos(cos(-45°))

  5. Degree, Minutes, and Seconds In a full circle there are 360 degrees. Each degree is split up into 60 parts, each part being 1/60 of a degree. These parts are called minutes. Each minute is split up into 60 parts, each part being 1/60 of a minute. These parts are called seconds. 15 13 A

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