document.write( "Question 1125852: what is the value of 4sin5π/12 cos5π/12?\r
\n" ); document.write( "\n" ); document.write( "a. √2
\n" ); document.write( "b. 1
\n" ); document.write( "c. √3
\n" ); document.write( "d. -1\r
\n" ); document.write( "\n" ); document.write( "thanks!
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Algebra.Com's Answer #742171 by greenestamps(13200)\"\" \"About 
You can put this solution on YOUR website!


\n" ); document.write( "Use \"sin%282x%29+=+2sin%28x%29cos%28x%29\"

\n" ); document.write( "\"4sin%285pi%2F12%29cos%285pi%2F12%29+=+2sin%285pi%2F6%29+=+2%281%2F2%29+=+1\"

\n" ); document.write( "Answer b.
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