document.write( "Question 1114327: Consider ABC with the measure of angle B equal to 60 degrees, and side lengths a=4 and c=5. What is an expression that is equivalent to the length of side b? \n" ); document.write( "
Algebra.Com's Answer #729292 by josgarithmetic(39633)\"\" \"About 
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\"a%5E2%2Bc%5E2-2%2Aa%2Ac%2Acos%28B%29=b%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"b=sqrt%28a%5E2%2Bc%5E2-2ac%2Acos%28B%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"b=sqrt%284%5E2%2B5%5E2-2%2A4%2A5%2Acos%2860%29%29\"\r
\n" ); document.write( "\n" ); document.write( "simplify. Compute b.
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