document.write( "Question 441144: Please find the exact value of 'a':
\n" ); document.write( "\"+cos%28a%29+%2B+sqrt%283%29+=+-cos%28a%29\"\r
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Algebra.Com's Answer #305398 by lwsshak3(11628)\"\" \"About 
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Please find the exact value of 'a':
\n" ); document.write( "\"+cos%28a%29+%2B+sqrt%283%29+=+-cos%28a%29\"
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\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
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