document.write( "Question 819657: 3 sin 2θ − 5 sin θ = 0 \n" ); document.write( "

Algebra.Com's Answer #493203 by lwsshak3(11628) $\"\"$ $\"About$

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For interval [0,90˚]
\n" ); document.write( "3 sin 2θ − 5 sin θ = 0
\n" ); document.write( "3(2sinθcosθ)-5sinθ=0
\n" ); document.write( "6sinθcosθ)-5sinθ=0
\n" ); document.write( "sinθ(6cosθ-5)=0
\n" ); document.write( "sinθ=0
\n" ); document.write( "θ=0
\n" ); document.write( "or
\n" ); document.write( "6cosθ-5=0
\n" ); document.write( "cosθ=5/6
\n" ); document.write( "θ≈33.56˚
\n" ); document.write( " \n" ); document.write( "

\n" );