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December 16th, 2012, 03:51 AM   #1
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Complex numbers

Help on this
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December 16th, 2012, 05:29 AM   #2
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Can you evaluate (a) the numerator of the first term, (b) the denominator of the first term, or (c) the second term?
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December 16th, 2012, 08:11 AM   #3
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Re: Complex numbers

I don't know how to do this..(
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December 16th, 2012, 08:30 AM   #4
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(a) Can you evaluate (1 + 2i) - (2 - i)?
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December 16th, 2012, 08:45 AM   #5
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Re: Complex numbers

Yes, I get 3i-1
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December 16th, 2012, 01:03 PM   #6
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That is correct.

(b) Can you evaluate (1 + 2i)? (In doing so, simplify the result by using the fact that i = -1.)

(c) Bearing in mind that i = -1, what is the value of i^2013 = (i^2012)i?
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