The function f(x)=x^2+lambda/x has a (...

The function `f(x)=x^2+lambda/x` has a (a)minimum at `x=2iflambda=16` (b)maximum at `x=2iflambda=16` (c)maximum for no real value of `lambda` (d)point of inflection at `x=1iflambda=-1`

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