Use double angle identities to find values of the sine and cosine functions for each angle. (a) 28, given sin 0 = and cos 0<0 and cos 0 <0 %D (b) 2x, given tan x = 2 and cos x > 0 %3D V5 and cos 0> 0 7. (c) 20, given sin 0 =
Use double angle identities to find values of the sine and cosine functions for each angle. (a) 28, given sin 0 = and cos 0<0 and cos 0 <0 %D (b) 2x, given tan x = 2 and cos x > 0 %3D V5 and cos 0> 0 7. (c) 20, given sin 0 =
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Use the double angle identities to find values of the sine and cosine functions for each angle.
please see the attached picture assignments.
Transcribed Image Text:Exercise 1.3
1. Use double angle identities to find values of the sine and cosine
functions for each angle.
21
(a) 20, given sin 0 = and cos 0 <0
(b) 2x, given tan x = 2 and cos x>0
V5
and cos 0> 0
7.
(c) 26, given sin 0 =
3.
(d) 0, given cos 20
and 0 terminates in quadrant I
%3D
3.
(e) 0, given 26 =
and 0 terminates in quadrant III
4.
(f) 8, given cos 20
5
and 90° < 0 < 180°
12
%3D
(g) 0, given cos 20
and 90° <0 < 180°
%3D
3.
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