18. Let g(t) be a differentiable function such that g(2) = 3, g(3) = 4, g'(2) = 5, and g '(3) = 6. Use differentials (linearization) to approximate the value of f(0.90, 1.05), where f(x, y)= e¹-xy · g(ey-x + y²). +y³.

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