Question: 4. Let 2 = 1-i3 2 + 2i (a) Find module and argument of z. (b) Deduce the argument and principal argument of z.

4. Let 2 = 1-i3 2 + 2i (a) Find module and 

4. Let 2 = 1-i3 2 + 2i (a) Find module and argument of z. (b) Deduce the argument and principal argument of z.

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