12 You are given that sin(A) = -, with A in Quadrant IV, and sin(B) -, with B in Quadrant III. Find cos(A + B). 13 %3D 25 Give your answer as a fraction.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 4E
Question
12
You are given that sin(A) = -, with A in Quadrant IV, and sin(B)
-, with B in Quadrant III. Find cos(A + B).
13
%3D
25
Give your answer as a fraction.
Transcribed Image Text:12 You are given that sin(A) = -, with A in Quadrant IV, and sin(B) -, with B in Quadrant III. Find cos(A + B). 13 %3D 25 Give your answer as a fraction.
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