表达式20: "O" Subscript, 1 , Baseline equals Start integral from "a" Subscript, 1 , Baseline to "b" Subscript, 1 , Baseline , end integral, left parenthesis, "G" left parenthesis, "y" , right parenthesis minus "F" left parenthesis, "y" , right parenthesis , right parenthesis "d" "y"O1=∫b1a1Gy−Fydy
equals=
11.211.2
20
表达式21: "O" Subscript, 0 , Baseline equals Start integral from "a" Subscript, 0 , Baseline to "s" , end integral, left parenthesis, "f" left parenthesis, "x" , right parenthesis minus 0 , right parenthesis "d" "x" plus Start integral from "s" to "b" Subscript, 0 , Baseline , end integral, left parenthesis, "f" left parenthesis, "x" , right parenthesis minus "g" left parenthesis, "x" , right parenthesis , right parenthesis "d" "x"O0=∫sa0fx−0dx+∫b0sfx−gxdx
