Find the maximum of f(x1, x2) = 4x1 + 2x2 + x1^2 - 2x1^4 + 2x1x2 - 3x2^2 using the steepest ascent method with initial guess x1 = 0 and x2 = 0. (a) Find the gradient vector and Hessian matrix for the function f(x1, x2). (b) Perform two iterations of the steepest ascent method.
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