Which of the following expressions are false? 1.lim(z,w)→(0,0) 구+ %3D I1. lim(포,w)→(0,0) 구+7 %3D , (z, y) + (0,0) , (1, y) = (0,0) I. f(z, y) = 2z2+y? is not continuous at (0,0). %3D O a. I, II O b. I O . I, II O d. I O e.l, II, II

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A: Topic = Limits and  Continuity

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Limits of Multivariable Functions

Multivariable calculus is an extension of single variable calculus. It involves several variables instead of just one. Assume there is an open set containing points (x0, y0), let f be a function defined in that open interval except for the points (x0, y0). The multivariable limit of this function as it approaches the points (x0, y0) and is denoted as: