document.write( "Question 923534: Determine all solutions of the equation in radians.
\n" ); document.write( "Find cos(x/2), given that sec x=4 and x terminates in 0\n" ); document.write( "\n" ); document.write( "I got sqr5/8 but how to get it to raidant
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Algebra.Com's Answer #560176 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
cos(x/2) = 1/4 = .25
\n" ); document.write( "x/2 = 1.318
\n" ); document.write( "x = 2.636
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