Question: Let h : R++ - R++ be defined by if I Let h (d) : + s R ++ be defined by if < 2

Let h (d) : + s R ++ be defined by if
< 2 1+x/2, ifx22 Prove that h is concave using the method

Let h : R++ - R++ be defined by if I

Let h (d) : + s R ++ be defined by if < 2 1+x/2, ifx22 Prove that h is concave using the method Of your choosing. Fully justify your answer.

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