document.write( "Question 221254: Prove that:
\n" ); document.write( "tanx +tan(x+pi/3) +tan(x+2pi/3)=3 \n" ); document.write( "

Algebra.Com's Answer #166053 by Edwin McCravy(20060) $\"\"$ $\"About$

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$\"tan%28x%29+%2Btan%28x%2Bpi%2F3%29+%2Btan%28x%2B2pi%2F3%29=3\"$
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document.write( "Sorry, but that is NOT an identity.  For if \r\n" );
document.write( "we substitute :\r\n" );
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document.write( "And by special angles, , , \r\n" );
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document.write( "This is false.  Perhaps you copied it wrong.\r\n" );
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document.write( "Edwin

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