document.write( "Question 1048799: By expanding cos(x-60), express 7cos(X) + 8cos(x-60) in the form Rsin(x+y),where R>0 and y is acute.
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Algebra.Com's Answer #664389 by Edwin McCravy(20059) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Draw a right triangle with opposite side 11 and adjacent\r\n" );
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document.write( "Substitute for 11 and  in\r\n" );
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document.write( "Edwin

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