If cos(x) = - and sin(y) = - with tan(x) > 0 and cos(y) < 0, algebraically compute the exact value of cos(y – x). You do not need to simplify your final expression.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.4: Logarithmic Functions
Problem 37E
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If cos(x) = - and sin(y) = - with tan(x) > 0 and cos(y) < 0,
algebraically compute the exact value of cos(y – x). You do not need to simplify your
final expression.
Transcribed Image Text:If cos(x) = - and sin(y) = - with tan(x) > 0 and cos(y) < 0, algebraically compute the exact value of cos(y – x). You do not need to simplify your final expression.
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