Expresión 9: 0 less than or equal to "y" less than or equal to "f" left parenthesis, "x" , right parenthesis left brace, left parenthesis, "a" minus "x" , right parenthesis left parenthesis, "b" minus "x" , right parenthesis less than 0 , right brace0≤y≤fxa−xb−x<0
9
Shade region where integrand is negative.
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Expresión 11: "f" left parenthesis, "x" , right parenthesis less than or equal to "y" less than or equal to 0 left brace, left parenthesis, "a" minus "x" , right parenthesis left parenthesis, "b" minus "x" , right parenthesis less than 0 , right bracefx≤y≤0a−xb−x<0
11
Movable points that define integration bounds.
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Expresión 13: left parenthesis, "a" , "f" left parenthesis, "a" , right parenthesis , right parenthesisa,fa
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Expresión 14: left parenthesis, "a" , "F" left parenthesis, "a" , right parenthesis , right parenthesisa,Fa
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Expresión 15: left parenthesis, "b" , "f" left parenthesis, "b" , right parenthesis , right parenthesisb,fb
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Expresión 16: left parenthesis, "b" , "F" left parenthesis, "b" , right parenthesis , right parenthesisb,Fb