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Use trigonometric identities to solve

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sin(2x)+cos(x)=0 exactly for 0<x<2pi.

solving-trigonometric-equations

asked Apr 21, 2014 in TRIGONOMETRY by anonymous

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1 Answer

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The expression is .

Apply zero product property :If

on the interval .

on the interval .

on the interval .

on the interval .

Therefore .

answered Apr 22, 2014 by ashokavf Scholar

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