Question: i stuck in this question please solve this question Question 4. Consider the function f(x) = v1+ |x/2=1+x+ +2. (a) Find the gradient and Hessian

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Question 4. Consider the function f(x) = v1+ |x/2=1+x+ +2. (a) Find the gradient and Hessian of f. (b) Show that the Hessian is positive definite. Hint. Express the Hessian V' f(x) = (1 - aa ) for some vector a. Then, show that I - aa is positive definite

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