Expression 1: "s" left parenthesis, "x" , right parenthesis equals 0.0 0 0 0 1 7 left parenthesis, 400 "x" cubed minus 3 "x" to the 4th power , right parenthesis left brace, 0 less than "x" less than 100 , right bracesx=0.000017400x3−3x40<x<100
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Expression 2: "v" left parenthesis, "x" , right parenthesis equals StartFraction, "d" Over "d" "x" , EndFraction left parenthesis, "s" left parenthesis, "x" , right parenthesis , right parenthesisvx=ddxsx