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For the function f(x)=x^4(12(log)e x-7),...

For the function `f(x)=x^4(12(log)_e x-7),` show that the point (1,7) is the point of inflection. `x=e^(1/3)` is the point of minima the graph is concave downwards in (0,1) the graph is concave upwards in `(1,oo)`

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