document.write( "Question 242664: 2cos(x)+sqrt(2)=0 \n" ); document.write( "
Algebra.Com's Answer #177644 by Alan3354(69443)\"\" \"About 
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2cos(x)+sqrt(2)=0
\n" ); document.write( "cos(x) = sqrt(2)/2
\n" ); document.write( "x = pi/4, 3pi/4 (45 and 135 degrees)
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\n" ); document.write( "General solution:
\n" ); document.write( "x = pi/4 + 2n*pi, n = 0,1,2,...
\n" ); document.write( "x = 3pi/4 + 2n*pi, n = 0,1,2,...\r
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