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.)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Question
Transcribed Image Text:Assume that sin (x) =
3
5'
cos (x - y) =
sin (y):
4
where
T
3π
< x < π and <y< 2n.
2
2
Calculate cos (x - y).
(Give an exact answer. Use symbolic notation and fractions where needed.)
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