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Let a=e^(i""(2pi)/3). Then the equation ...

Let `a=e^(i""(2pi)/3)`. Then the equation whose roots are `a+a^(2) and a^(2)+a^(4)` is :

A

`x^(2)-2x+4=0`

B

`x^(2)+2x+1=0`

C

`x^(2)+x+4=0`

D

`x^(2)+2x+4=0`

Text Solution

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The correct Answer is:
D
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