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If f,g,a n dh are differentiable funct...

If `f,g,a n dh` are differentiable functions of `xa n d(x)=|fgh(xf)'(xg)'(x h)'(x^(f2)f)' '(x^2g)' '(x^2h)|' prove `
`Delta' =|` (f g h f' g' h' (x^3f'' ')'(x^3g'' ')'(x^3h ' ')'|`

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