If sin x x= 1 x in quadrant I, then find (without finding x) : sin(2x) = cos(2x) = tan(2x) =
If sin x x= 1 x in quadrant I, then find (without finding x) : sin(2x) = cos(2x) = tan(2x) =
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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Transcribed Image Text:If sin x =
sin(2x):
cos(2x)
tan (2x) =
=
||
1
x in quadrant I, then find (without finding x) :
)
6
=
Transcribed Image Text:Using a double-angle or half-angle formula to simplify the given expressions.
(a) If cos² (22°) - sin² (22°) = cos(A°), then
A =
degrees.
(b) If cos² (4x) — sin²(4x) = cos(B), then
B
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