Syntax::sntxi: Incomplete expression; more input is needed .

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f[x_] := -5/8*(1 - x)^(4/5) + 5/12*(1 - x)^(6/5) + 5/24
% f  {2 z0 C: Z8 O; M4 ]0 E& dg[x_] := If[x < 1,
\!\(\*SuperscriptBox[\(f\), \(,\)]\)[x], 0]
( V. G. D  ]2 _' p. T9 @Do[t1 = Plot[f[x], {x, 0, 0.04 k}, PlotPoints -> 50,
$ I) {+ U% M* M. G% H   PlotRange -> {{0, 1.1}, {0, 0.22}}, DisplayFunction -> Identity];
y0 = NIntegrate[Sqrt[1 + (g[x])^2], {x, 0, 0.04 k}]/5;
& l/ S5 t- [1 y: j: Z/ q t2 = ParametricPlot[{1, t}, {t, 0, y0}, PlotPoints -> 50,
   DisplayFunction -> Identity];
2 i. E% }9 r9 u0 P) N Show[t1, t2, DisplayFunction -> $DisplayFunction], {k, 25}]
0 k! `1 j" E" J, Q7 j