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If omega is a comples cube root of unity...

If `omega` is a comples cube root of unity, then `(1 - omega + omega^(2) ) ^(6) + (1 - omega^(2) + omega)^(6)` is :

A

0

B

6

C

64

D

128

Text Solution

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The correct Answer is:
D
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OBJECTIVE RD SHARMA ENGLISH-COMPLEX NUMBERS -Exercise
  1. If the roots of (z-1)^n=i(z+1)^n are plotted in ten Arg and plane, the...

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  2. Area of the triangle formed by 3 complex numbers, 1+i,i-1,2i, in the A...

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  3. If omega is a comples cube root of unity, then (1 - omega + omega^(2) ...

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  4. The locus represented by the equation |z-1| = |z-i| is

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  5. If z=i log(2-sqrt(3)) then cosz

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  6. If a=cos alpha+i sin alpha, b=cos beta+isin beta,c=cos gamma+i sin gam...

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  7. lf z1,z2,z3 are vertices of an equilateral triangle inscribed in the c...

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  8. The general value of the real angle θ, which satisfies the equation, (...

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  9. State true or false for the following. If z is a complex number such...

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  10. If z + z^(-1)= 1, then find the value of z^(100) + z^(-100).

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  11. Let A,B and C represent the complex number z1, z2, z3 respectively on ...

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  12. Find the number of solutions of the equation z^(2)+|z|^(2)=0.

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  13. The number of solutions of the equation z^(2) + barz =0 is .

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  14. The centre of a square is at the origin and one of the vertex is 1-i e...

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  15. Let za n domega be two complex numbers such that |z|lt=1,|omega|lt=1a ...

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  16. The system of equation |z+1+i|=sqrt2 and |z|=3}, (where i=sqrt-1) ha...

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  17. The triangle with vertices at the point z1z2,(1-i)z1+i z2 is

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  18. Let a and b two fixed non-zero complex numbers and z is a variable com...

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  19. The centre of a square ABCD is at z=0, A is z(1). Then, the centroid o...

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  20. If z=x+i y , then the equation |(2z-i)/(z+1)|=m does not represents a ...

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