Verify that the equation is an identity. (Hint: sin 2x = sin (x+ x)) sin 2x = 2 sin x cos x Substitute 2x = x+x and apply the sine of a sum identity. sin 2x = sin (x + x)
Verify that the equation is an identity. (Hint: sin 2x = sin (x+ x)) sin 2x = 2 sin x cos x Substitute 2x = x+x and apply the sine of a sum identity. sin 2x = sin (x + x)
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 25E
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Verify that the equation is an identity. (Hint: sin2x=sin(x+x))
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