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Hi All,A hopefully simple Mathematica question.I have y = f(t) , x = g(t).dy/dx = f' / g'How can I get Mathematica to derive this by itself? RgdsBM

Clear[y, f, t, x, g];y[t_] := f[t];t[x_] := InverseFunction[g][x];D[y[t[x]], {x, 1}] /. {x -> g[t]}

clever - thxBM