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1. (a) Let = = x + iy be any non-zero complex number. (i) Express in the form u + iv. Z (ii) If =

1. (a) Let = = x + iy be any non-zero complex number. (i) Express in the form u + iv. Z (ii) If = + - = k, ke R, show that either y = 0 or x- +12 = 1. (iii) Show that if x += 1 then k

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