Question: b) Consider the function f(z) = (Logz) + xy-yx + y x + x + i (3xy - i. at which points does the

b) Consider the function f(z) = (Logz) + xy-yx + y x

b) Consider the function f(z) = (Logz) + xy-yx + y x + x + i (3xy - i. at which points does the derivative exist? -2xy+y- y). ii. derive a formula for the derivative of f(z) and evaluate its value at := i, iii. where is function f analytic? Sketch the domain of analyticity.

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