document.write( "Question 857030: If theta is an acute angle and sine of theta=1/2,then cosine of theta =? \n" ); document.write( "
Algebra.Com's Answer #516329 by Fombitz(32388)\"\" \"About 
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\"%28sin%28theta%29%29%5E2%2B%28cos%28theta%29%29%5E2=1\"\r
\n" ); document.write( "\n" ); document.write( "\"%281%2F2%29%5E2%2B%28cos%28theta%29%29%5E2=1\"
\n" ); document.write( "\"%28cos%28theta%29%29%5E2=1-1%2F4=3%2F2\"
\n" ); document.write( "\"cos%28theta%29=sqrt%283%29%2F2\"
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