Complex numbers

Asked by  | 1st Oct, 2008, 08:55: PM

Expert Answer:

( x - 1 )4 =16

( x - 1 )2= ±4

x-1 =   (±4)

so x-1 =  ±2 (taking +ve sign)  ==> x=3 or -1

and x-1 = ±2j where j=-1 (taking -ve sign)

so x = 1±2j

so sum of nonreal values of x = (1+2j)+(1-2j) = 2

Answered by  | 19th Dec, 2008, 07:36: PM

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