document.write( "Question 167379This question is from textbook Precalculus
\n" ); document.write( ": If tanθ = 3, find the value of:
\n" ); document.write( "tanθ + tan(θ + π) + tan(θ + 2π)\r
\n" ); document.write( "\n" ); document.write( "I know the answer is 9, I'm just not sure how to get there. Please help.
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Algebra.Com's Answer #123275 by oscargut(2103)\"\" \"About 
You can put this solution on YOUR website!
tan(a)=tan(a+pi)=tan(a+2pi) so
\n" ); document.write( "tan(a)+tan(a+pi)+tan(a+2pi)=3+3+3=9
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