find sin2x, cos2x and tan2x from the given information a)sec x=2, x is in quadrant IV b) tan x =-4/3, x is in quadrant II

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 43E
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find sin2x, cos2x and tan2x from the given information a)sec x=2, x is in quadrant IV b) tan x =-4/3, x is in quadrant II

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