document.write( "Question 378343: If x is a positive angle smaller than 90° and cos(x) = 1/3, then sin(x) = \r
\n" ); document.write( "\n" ); document.write( "A) 2/3
\n" ); document.write( "B) 2√2 / 3
\n" ); document.write( "C) √2
\n" ); document.write( "D) 8/9
\n" ); document.write( "E) 4/9
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Algebra.Com's Answer #268818 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
If x is a positive angle smaller than 90° and cos(x) = 1/3, then sin(x) =
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\n" ); document.write( "\"sin%5E2%28x%29+%2B+cos%5E2%28x%29+=+1\"
\n" ); document.write( "\"sin%28x%29+=+sqrt%281+-+cos%5E2%28x%29%29+=+sqrt%281+-+1%2F9%29+=+sqrt%288%2F9%29\"
\n" ); document.write( "\"sin%28x%29+=+2sqrt%282%29%2F3\"
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\n" ); document.write( "PS Giving the choices is a waste of time.\r
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