Hi. I have recently scratched the basics of complex numbers and just learnt the modulus. I looked at one of the examples on my textbook which states that(adsbygoogle = window.adsbygoogle || []).push({});

l (-1+ 3^{1/2}i)l = ((-1)^{2}+(3^{0.5})^{2})^{1/2}

But according to my understanding, isnt the l3^{1/2}il supposed to be sqrt of 3i^{2}, in which it is a 3(-1). But typing the equation into my graphic calcuator reveals the results as shown on the textbook, meaning my understanding is wrong.

Any helps please? Thanks.

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# Homework Help: A basic question about complex numbers

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