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1- sin x cos x 1- sin x cos x

1- sin x cos x 1- sin x cos x

Trigonometry (11th Edition)
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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In Exercises 39-46, (a) use a graphing utility to graph each side of the equation to determine whether the equation is an identity, (b) use the table feature of a graphing utility to determine whether the equation is an identity, and (c) confirm the results of parts (a) and (b) algebraically. 39. 2 sec? x- 2 sec? x sin?x- sin? x cos?x = 1 sin x - cos x 40. csc x(csc x - sin x) + + cot x =csc2 x sin x 41. 2 + cos?x - 3 cos“ x = sin? x(3 + 2 cos? x) 42. tan x + tan? x - 3 = sec? x(4 tan?x - 3) 43. csc+ x 2 csc2 x + 1 cot x %3D 44. (sin* B - 2 sin? B + 1) cos B = cos B 1 - sin x cos x cot a csc a + 1 1 - sin x 46. csc a + 1 cos x cot a
Transcribed Image Text:In Exercises 39-46, (a) use a graphing utility to graph each side of the equation to determine whether the equation is an identity, (b) use the table feature of a graphing utility to determine whether the equation is an identity, and (c) confirm the results of parts (a) and (b) algebraically. 39. 2 sec? x- 2 sec? x sin?x- sin? x cos?x = 1 sin x - cos x 40. csc x(csc x - sin x) + + cot x =csc2 x sin x 41. 2 + cos?x - 3 cos“ x = sin? x(3 + 2 cos? x) 42. tan x + tan? x - 3 = sec? x(4 tan?x - 3) 43. csc+ x 2 csc2 x + 1 cot x %3D 44. (sin* B - 2 sin? B + 1) cos B = cos B 1 - sin x cos x cot a csc a + 1 1 - sin x 46. csc a + 1 cos x cot a
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