document.write( "Question 260504: Use reference angles to find the exact value of the following expression.\r
\n" ); document.write( "\n" ); document.write( "sin300 degrees
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Algebra.Com's Answer #191878 by drk(1908)\"\" \"About 
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The sin(300) is in quadrant IV and has reference angle of 60.
\n" ); document.write( "So, we need sin(60) = sqrt(3)/2
\n" ); document.write( "sin in Quad IV is negative, so our answer is
\n" ); document.write( "-sqrt(3)/2
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