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Question 9 Use the given information to find the exact value of the expression. sin α = 1, & lies in quadrant II, and cos ẞ = 3, ẞ lies in quadrant | Find cos (α - ẞ). A) 8-3-√√21 25 B)-6+421 B) -6+4√/21 25 C) 6-4√/21 25 D) 8+321 25

Question 9 Use the given information to find the exact value of the expression. sin α = 1, & lies in quadrant II, and cos ẞ = 3, ẞ lies in quadrant | Find cos (α - ẞ). A) 8-3-√√21 25 B)-6+421 B) -6+4√/21 25 C) 6-4√/21 25 D) 8+321 25

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 18E
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Question 9 Use the given information to find the exact value of the expression. sin α = 1, & lies in quadrant II, and cos ẞ = 3, ẞ lies in quadrant | Find cos (α - ẞ). A) 8-3-√√21 25 B)-6+421 B) -6+4√/21 25 C) 6-4√/21 25 D) 8+321 25
Transcribed Image Text:Question 9 Use the given information to find the exact value of the expression. sin α = 1, & lies in quadrant II, and cos ẞ = 3, ẞ lies in quadrant | Find cos (α - ẞ). A) 8-3-√√21 25 B)-6+421 B) -6+4√/21 25 C) 6-4√/21 25 D) 8+321 25
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