document.write( "Question 1143703: use trigonometric identities to expand and simplify if possible\r
\n" ); document.write( "\n" ); document.write( "a) sin(A+270)\r
\n" ); document.write( "\n" ); document.write( "b) cos(B+180)
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Algebra.Com's Answer #764582 by Alan3354(69443)\"\" \"About 
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use trigonometric identities to expand and simplify if possible\r
\n" ); document.write( "\n" ); document.write( "a) sin(A+270)\r
\n" ); document.write( "\n" ); document.write( "b) cos(B+180)
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\n" ); document.write( "If you don't know the identities, look them up at \"Half Angle Formulas\" on Wikipedia.
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