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windsylphBest ResponseYou've already chosen the best response.0
I know that the answer is 1 + x^2, but I keep on thinking that it is 1x^2 because i^2 = 1.. Can someone please explain this to me?
 one year ago

matrickedBest ResponseYou've already chosen the best response.1
for a+ib mgnitude of a+ib is denoted by a+ib and it is given by sqrt(a^2+b^2)
 one year ago

windsylphBest ResponseYou've already chosen the best response.0
sorry, i forgot the square root.. but where did the i go?
 one year ago

windsylphBest ResponseYou've already chosen the best response.0
oh wait i got it, never mind, thank you. i is just there to denote that it is imaginary, so the magnitude still turns out to be sqrt(a^2+b^2) by the pythagorean theorem
 one year ago
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