Assume that sin (x) = cos (x - y) = 3 5' sin (y) 4 == where 9' EN < x < π and 3π < y < 2n. Calculate cos (x - y). (Give an exact answer. Use symbolic notation and fractions where needed.)
Assume that sin (x) = cos (x - y) = 3 5' sin (y) 4 == where 9' EN < x < π and 3π < y < 2n. Calculate cos (x - y). (Give an exact answer. Use symbolic notation and fractions where needed.)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 106E
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