document.write( "Question 962967: How do you find the exact circular value of sin 9pi/4 \n" ); document.write( "

Algebra.Com's Answer #588348 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+sin%28+9%2A%28pi%2F4%29+%29+\"$
\n" ); document.write( "Note that $\"+8%2A%28+pi%2F4+%29+=+2%2Api+\"$
\n" ); document.write( "That would be a 360 degree
\n" ); document.write( "rotation around the unit circle
\n" ); document.write( "which puts you back at zero degrees
\n" ); document.write( "---------------------------------
\n" ); document.write( "Now you turn $\"+pi%2F4+\"$ more in the positive
\n" ); document.write( "direction. You are in the 1st quadrant
\n" ); document.write( " $\"+sin%28+pi%2F4+%29+=+sqrt%282%29+%2F+2+\"$ \r
\n" ); document.write( "
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