Melissi Posted April 14, 2014 Report Share Posted April 14, 2014 Hi again everyone!While doing an exam question this morning I got a bit confused regarding the different ways of expressing complex numbers, and I've found different answers when I tried to look it up, so I was hoping someone could help me out!When writing complex numbers in modulus-argument form, is that rcis(theta) or in the exponential form? I've seen a couple of different answers so I'm not actually sure which form I should be using...Thanks! Reply Link to post Share on other sites More sharing options...
Bude Posted April 14, 2014 Report Share Posted April 14, 2014 (edited) Hi again everyone! While doing an exam question this morning I got a bit confused regarding the different ways of expressing complex numbers, and I've found different answers when I tried to look it up, so I was hoping someone could help me out! When writing complex numbers in modulus-argument form, is that rcis(theta) or in the exponential form? I've seen a couple of different answers so I'm not actually sure which form I should be using... Thanks! Modulus argument form is You have your modulus r, and your argument Exponential form is You have your exponents Edited April 14, 2014 by Bude 1 Reply Link to post Share on other sites More sharing options...
Melissi Posted April 17, 2014 Author Report Share Posted April 17, 2014 Ah, thank you! That's what I thought, but for some reason the mark scheme for the paper I was doing had them the other way around. Oops! Reply Link to post Share on other sites More sharing options...
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