document.write( "Question 862990: Refer to the graph of y = sin x or y = cos x to find the exact values of x in the interval [0, 4π] that satisfy the equation. (Enter your answers as a comma-separated list.)
\n" ); document.write( "cos x =
\n" ); document.write( "−
\n" ); document.write( " 2
\n" ); document.write( "2
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Algebra.Com's Answer #520122 by Alan3354(69443)\"\" \"About 
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What equation? \n" ); document.write( "
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