Question: 'Let 0(z) = log(1+ e 7) for z R. Compute its first and second derivatives, and show that o(-) is a convex function. Further, show

'Let 0(z) = log(1+ e 7) for z R. Compute its first and second derivatives, and show that o(-) is a convex function. Further, show that for a fixed 5 RP, the function f(z) =log (1 + 6_-3T:') for x R? is convex

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