document.write( "Question 781743: Please help me solve this equation: . \n" );
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Algebra.Com's Answer #476111 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! tan x= - sqrt( 3 ) \n" ); document.write( "----- \n" ); document.write( "Draw a 30-60 degree right triangle. \n" ); document.write( "Label the angles so you see where 30 degrees is \n" ); document.write( "---- \n" ); document.write( "Let the side opposite the 30 degree angle be 1 \n" ); document.write( "Then the hypotenuse is 2 \n" ); document.write( "And the side opposite the 60 degree angle is sqrt(3) \n" ); document.write( "---------- \n" ); document.write( "Notice that tan(60) = sqrt(3)/1 = sqrt(3) \n" ); document.write( "-------- \n" ); document.write( "So 60 degrees is the reference angle. \n" ); document.write( "-------- \n" ); document.write( "Then x = arctan(-sqrt(3)) is either 180-60 = 120 degrees \n" ); document.write( "or x = arctan(-sqrt(3))is 360-60 = 300 degrees. \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |