document.write( "Question 800158: cos (squared) theta = 1/2 \n" ); document.write( "
Algebra.Com's Answer #482960 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
cos^2 (theta) = 1/2
\n" ); document.write( "cos theta = 1/root2
\n" ); document.write( "theta = 45 degrees, 315 degrees, 45 + 360n, 315 + 360n
\n" ); document.write( "theta = Pi/4, 7Pi/4, Pi/4 + 360n, 7Pi/4 + 360n.
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-)
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