For sin 2z + cos z = 0, use a double-angle or half-angle formula to simplify the equation and then find all solutions of the equation in the interval (0, 27). The answers are 12 = 13 = and with a, < za < 3 < I4.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 61E
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For sin 2z + cos z = 0, use a double-angle or half-angle formula to simplify the equation and then find
all solutions of the equation in the interval (0, 27).
The answers are
12 =
13 =
and
I4 =
with z, < z2 < 13 < I4.
Transcribed Image Text:For sin 2z + cos z = 0, use a double-angle or half-angle formula to simplify the equation and then find all solutions of the equation in the interval (0, 27). The answers are 12 = 13 = and I4 = with z, < z2 < 13 < I4.
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