Question

Calcule o valor de: a) (1-i).(1+i) b)(1-i)^17.(1+i)^19

Answer 1

a) (1-i).(1+i) = 1² - i² = 1 - 1 = 0 

b)(1 - i)^17.(1 + i)^19 = 0, veja abaixo. 

(1 -i)^17 = (1 - i)(1 - i)*(1 - i)(1 - i)...(1+i)(1+i)*(1+i) = 0.0*...*0.0.(1+i) = 0

(1 -i)^19 = (1 - i)(1 - i)*(1 - i)(1 - i)...(1+i)(1+i)*(1+i) = 0.0*...*0.0.(1+i) = 0

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10/10/2016
Sepauto 
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