document.write( "Question 975552: Hello,can I know how to find the exact value of tan40? \n" ); document.write( "
Algebra.Com's Answer #597286 by Alan3354(69443)\"\" \"About 
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Hello,can I know how to find the exact value of tan40?
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\n" ); document.write( "I don't think it's possible.
\n" ); document.write( "You can find exact values for multiples of 3 degrees --> tan(39) & tan(42) but not 40.
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