document.write( "Question 720477: Find the exact value of the trigonometric functions.
\n" ); document.write( "a. 13pi/2
\n" ); document.write( "I have 13pi/2*180/pi=1170-1080= 90 degrees= pi/2 \r
\n" ); document.write( "\n" ); document.write( "b.(-11pi/2)
\n" ); document.write( "I have -11pi/2*180/pi=990-720= 270 degrees= 3pi/2\r
\n" ); document.write( "\n" ); document.write( "Am I on the right track with my answers?
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Algebra.Com's Answer #441895 by lwsshak3(11628)\"\" \"About 
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Find the exact value of the trigonometric functions.
\n" ); document.write( "a. 13pi/2=6π+π/2=π/2
\n" ); document.write( "This is like rotating 3 revolutions (6π) counter-clockwise +π/2\r
\n" ); document.write( "\n" ); document.write( "b.(-11pi/2)=5π+π/2=4π+π+π/2=π/2
\n" ); document.write( "This is like rotating 2 revolutions (4π) clockwise+π+π/2
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