document.write( "Question 1013459: Which expression is equivalent to sin(theta - 2pi)?
\n" ); document.write( "-cos(theta)
\n" ); document.write( "cos(theta)
\n" ); document.write( "-sin(theta)
\n" ); document.write( "sin(theta)
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Algebra.Com's Answer #629725 by macston(5194)\"\" \"About 
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.
\n" ); document.write( "sin(theta)
\n" ); document.write( "\"-2pi\" radians is a complete circle (counterclockwise),
\n" ); document.write( "landing you back at theta.
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