![]() ![]() If they could put their working so I could see how you are thinking that'd be even better. Bkell ( talk) 00:47, 1 June 2006 (UTC) Thanks, but I'm currently writing a book and I would like someone to check these problems are doable. Is there a particular thing you don't understand? Maybe you should take a look at complex number and complex plane. (iii) Represent the three roots on an Argand diagram. (ii) Find the other two roots of the equation. You are given that the complex number alpha = 1 + j satisfies the equation z^3 + 3z^2 + pz + q = 0,
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