Identities cos¹ x+cos (-x) -- sec¹ x = tan x tan¹ (-x)-. R/2 I sin sec¹ x = Page 3 of 3

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
X
Identities
cos x+cos (-x) =
secx
tan x
Identities
tan-¹ (-x) =
sin" x =
sec¹ x =
Page 3 of 3
Transcribed Image Text:X Identities cos x+cos (-x) = secx tan x Identities tan-¹ (-x) = sin" x = sec¹ x = Page 3 of 3
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