Question: Let f RR be defined by : f(x) = ln(e1 + + en) with x = (x1,...,xn). Compute the second derivatives of f at

Let f RR be defined by : f(x) = ln(e1 + + en) with x = (x1,...,xn). Compute the second derivatives of f at an aribrary x, i,e., compute dij f(x) for all i, j = 1,..., n. (Note that dijf = ri (j).)

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