Question: 3. Without using the Cauchy-Riemann equations, determine for every zo E C, whether (i) f(z) = 1z/2 is differentiable at zo; (ii) g(z) = |z)

3. Without using the Cauchy-Riemann equations, determine for every zo E C, whether (i) f(z) = 1z/2 is differentiable at zo; (ii) g(z) = |z) is differentiable at zo. Remark. You can use without a proof the fact that h(z) = z is not differentiable at any zo E C which we proved in class

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