Explain why the function is differentiable at the given point. f(x, y) = y tan(x), (2, 6) The partial derivatives are f(x, y) = y sec²(x) nd r₂(₁6)-(1 a +/ and f(x, y) =tan(x) sor (₁6) - 4 , *Using n as an arbitrary integer, both f, and f, are continuous functions for so f is differentiable at at (#, 6). x πn + Find the linearization L(x, y) of the function at (, 6). L(x, y) = 4x-y-xx x

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