Expression 3: "g" left parenthesis, "x" , right parenthesis equals Start integral from 0 to "N" , end integral, "t" Superscript, left parenthesis, "x" minus 1 , right parenthesis , Baseline "e" Superscript, negative "t" , Baseline "d" "t"gx=∫N0tx−1e−tdt
3
Expression 4: "N" equals 100N=100
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Expression 5: StartFraction, "x" Over 2 , EndFraction minus StartFraction, "f" left parenthesis, "x" , right parenthesis Over "g" left parenthesis, "x" , right parenthesis , EndFractionx2−fxgx