document.write( "Question 859989: Find the exact value of tan 450 degrees \n" ); document.write( "
Algebra.Com's Answer #518121 by lwsshak3(11628)\"\" \"About 
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Find the exact value of tan 450 degrees
\n" ); document.write( "tan 450˚= tan 90˚=sin 90/cos 90=1/0=undefined
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