2. Application of Double-angle Formula (a) sec 8= 12, QIV, find sin 20, cos 20 and tan 20 (b) Evaluate sin 20, cos 20 and tan 20, 0 = cos (c) Simplify sin (2 tan-¹0) -1 5 -1

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 78E
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ebra of Trigonometry - MAT X
Σ7.3: Double Angle Identities - AX
ntent/1156310/viewContent/12770126/View
a of Trigonometry ✓
2 of 2
- + Automatic Zoom
2. Application of Double-angle Formula
(a) sec 8:
-1
(b) Evaluate sin 20, cos 20 and tan 20, 0 = cos
(c) Simplify sin(2 tan-¹0)
-1
= 12, QIV, find sin 20, cos 20 and tan 20
Ve
5
Transcribed Image Text:ebra of Trigonometry - MAT X Σ7.3: Double Angle Identities - AX ntent/1156310/viewContent/12770126/View a of Trigonometry ✓ 2 of 2 - + Automatic Zoom 2. Application of Double-angle Formula (a) sec 8: -1 (b) Evaluate sin 20, cos 20 and tan 20, 0 = cos (c) Simplify sin(2 tan-¹0) -1 = 12, QIV, find sin 20, cos 20 and tan 20 Ve 5
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