Question: Let f(x, y) = 1+ln(x - 2y). (a) State the domain and the range of f. [2] (b) Show that f is differentiable function

Let f(x, y) = 1+ln(x - 2y). (a) State the domain and

Let f(x, y) = 1+ln(x - 2y). (a) State the domain and the range of f. [2] (b) Show that f is differentiable function at (3, 1). [3] (c) Find the linearization L(x, y) of f at (3, 1). [2] (d) Estimate Af as we move from P(3, 1) towards Q(7,4) a distance of 0.1 by differentials. [3]

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