Verify number 63 and 65 using the sum or difference identities
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°.
Related questions
Question
Verify number 63 and 65 using the sum or difference identities
Transcribed Image Text:sin (x + y)
63.
cos x cos y
= tan x + tan y
sin (x + y)
64.
sin x sin y
= cot x + cot y
cos (x + y)
65.
COs x COs y
= 1 – tanx tan y
%3D
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