1. sin x csc x = 1 2. tan x csc x + cotx sin x = sec x + cos x Pythagorean Identities 3. cos? x (1+ tan? x) = 1 Multiply 4. sin?x(csc²x + sec²x) = sec?x Factor tan?x-sec?x 5. tan x-sec x = tan x +E sec x Add Fractions sin x 1+ cos x 6. = 2 csc x 1+ cos x sin x Even/Odd 7. sin?(-x) + cos²x = 1 Sum/Difference Formulas sin(a- b) 8. = tan a cot b – 1
1. sin x csc x = 1 2. tan x csc x + cotx sin x = sec x + cos x Pythagorean Identities 3. cos? x (1+ tan? x) = 1 Multiply 4. sin?x(csc²x + sec²x) = sec?x Factor tan?x-sec?x 5. tan x-sec x = tan x +E sec x Add Fractions sin x 1+ cos x 6. = 2 csc x 1+ cos x sin x Even/Odd 7. sin?(-x) + cos²x = 1 Sum/Difference Formulas sin(a- b) 8. = tan a cot b – 1
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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