If are the roots of the equation
then
-2
-1
1
2
As we have learned
Roots of Quadratic Equation -
- wherein
is the equation
Cube roots of unity -
k=0,1,2 so z gives three roots
- wherein
are cube roots of unity.
Option 1)
-2
Option 2)
-1
Option 3)
1
Option 4)
2
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