document.write( "Question 1000264: Find all the values of theta, \"0%3C=%28theta%29%3C=3pi\" for which \"cos%5E2%28theta%29=1%2F2\" \n" ); document.write( "
Algebra.Com's Answer #617742 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Hi there,
\n" ); document.write( "cos^2 (theta) = 1/2
\n" ); document.write( "cos(theta) = sqrt(1/2)
\n" ); document.write( "cos(theta) = 0.707
\n" ); document.write( "theta = pi/4, 7pi/4 and 9pi/4.
\n" ); document.write( "Hope this helps :-)
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