document.write( "Question 1180336: Simplify completely:
\n" ); document.write( "sqrt of fraction 1-cos40/2
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Algebra.Com's Answer #809965 by ikleyn(53763)\"\" \"About 
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document.write( "Use the formula of Trigonometry\r\n" );
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document.write( "\"sqrt%28%281-cos%28alpha%29%29%2F2%29\" = \"sin%28alpha%2F2%29\".\r\n" );
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document.write( "From the formula,  \"sqrt%28%281-cos%2840%2Ao%29%29%2F2%29\" = sin(20°).     ANSWER\r\n" );
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