document.write( "Question 173024: find the reference number for t=11pie/6 \n" ); document.write( "
Algebra.Com's Answer #128013 by midwood_trail(310)\"\" \"About 
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To find the reference angle, subtract 11pi/6 from 2pi.\r
\n" ); document.write( "\n" ); document.write( "We subtract from 2pi because 11pi/6 is an angle in quadrant 4.\r
\n" ); document.write( "\n" ); document.write( "2pi - 11pi/6 = pi/6\r
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