document.write( "Question 1147426: sin u = −5/13
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\n" ); document.write( "cos v = −15/17
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Algebra.Com's Answer #768769 by ikleyn(52834) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "This problem IS NOT about getting \"the value\".\r\n" );
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document.write( "It is about getting the answer in the form of a fraction.\r\n" );
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document.write( "So, you need substitute the fractions into the formula and calculate and present\r\n" );
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document.write( "the answer as a fraction.\r\n" );
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document.write( "cos(u+v) = cos(u)*cos(v) - sin(u)*sin(v) =  =  =  = .    ANSWER\r\n" );
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document.write( "It is THE expected form of the solution and the answer to this problem.\r\n" );
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