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If n is a multiple of 3 then omega^(n) +...

If n is a multiple of 3 then `omega^(n) + omega^(2n) = `

A

0

B

1

C

`-1`

D

2

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The correct Answer is:
D
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AAKASH SERIES-COMPLEX NUMBERS-EXERCISE - I
  1. sqrt(-8 - 6i) is equal to

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  2. The value of sqrt(15 + 8i) + sqrt(15 - 8i) is equal to

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  3. If n is a multiple of 3 then omega^(n) + omega^(2n) =

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  4. (1 + omega) (1 + omega^(2)) (1 + omega^(3)) (1 + omega^(4)) (1 + omega...

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  5. If 1, omega , omega^(2) are the cube roots of unity, then prove that ...

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  6. The value of ((- 1 + sqrt-3)/(2))^(26) + ((- 1 - sqrt-3)/(2))^(26) is ...

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  7. If (1 + omega)^(7) = A + B omega then (A , B) =

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  8. If |3z-2|=5 then the locus of z is

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  9. If |z -2 - 3i| = 5 then the locus of z = x +iy is

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  10. The equation |z-1|^(2) + |z+1|^(2) = 2 represents

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  11. If Re (z^2)=2 then the locus of z is

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  12. If amp (z-i) =pi//3 then the locus of z is

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  13. The locus of Z satisfying |z| + |z - 1| = 3 is

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  14. If the amplitude of z - 2 - 3i " is " pi//4 , then the locus of z = x ...

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  15. The complex number (1 + 2i)/(1 - i) lies in the

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  16. If three complex number are in A.P then they lie on

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  17. In the Argand plane, the points represented by the complex numbers 2-6...

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  18. The condition for the points z(1) , z(2) , z(3) , z(4) taken in order ...

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  19. The equation of the line joining the points represented by 2- 3i and -...

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  20. The number of complex number z such |z-1|=|z+1|=|z-i| equals

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