Explain why the function is differentiable at the given point. f(x, y) = y+ sin ). (0, 5 ) The partial derivatives are f (x, y) = and f (x, y) = so f (0, 5) = and f (0, 5) = . Both f and f are continuous functions for ---Select--- , so fis differentiable at (0, 5). Find the linearization L(x, y) of the function at (0, 5). L( X, V ) =