document.write( "Question 601703: Please help me answer this problem. Use half anglel formulas to find the exact value of the trigonometric function tan-pi/12 \n" ); document.write( "

Algebra.Com's Answer #380011 by lwsshak3(11628) $\"\"$ $\"About$

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Please help me answer this problem. Use half anglel formulas to find the exact value of the trigonometric function tan-pi/12
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\n" ); document.write( "Tan half-angle formula:
\n" ); document.write( "Tan(s/2)=sin s/(1+cos s)
\n" ); document.write( "For given problem:
\n" ); document.write( "tan(-π/12)=tan(-π/6)/2
\n" ); document.write( "=sin(-π/6)/(1+cos(-π/6))
\n" ); document.write( "=(-1/2)/(1+√3/2)
\n" ); document.write( "=-1/(2+√3) \n" ); document.write( "

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