document.write( "Question 441144: Please find the exact value of 'a':
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Algebra.Com's Answer #305398 by lwsshak3(11628) ![]() You can put this solution on YOUR website! Please find the exact value of 'a': \n" ); document.write( " \n" ); document.write( ".. \n" ); document.write( "cos(a) + √3 = -cos(a) \n" ); document.write( "cos(a) +cos(a) = -√3 \n" ); document.write( "2cos(a)=-√3 \n" ); document.write( "cos(a)=-√3/2 \n" ); document.write( "a=2π/3 & 4π/3 radians in quadrants II & III \n" ); document.write( " |