document.write( "Question 329103: 13. Find the exact value of sin 30 ° - sin 45 ° cos 45 ° .
\n" ); document.write( "a. 0
\n" ); document.write( "b. 1/2
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\n" ); document.write( "d. 2 \r
\n" ); document.write( "\n" ); document.write( "*I simplified the equation to (1/2)(4)°-(2)°/(4)°, then I got stuck. Please help me and I thank you for your time.\r
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Algebra.Com's Answer #235803 by Alan3354(69443)\"\" \"About 
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Find the exact value of sin 30 ° - sin 45 ° cos 45 °
\n" ); document.write( "= \"%281%2F2%29+-+%28sqrt%282%29%2F2%29%2A%28sqrt%282%29%2F2%29\"
\n" ); document.write( "= 1/2 - 1/2
\n" ); document.write( "= 0\r
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