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The value of ((1+ i sqrt(3))/(1-isqrt(3...

The value of `((1+ i sqrt(3))/(1-isqrt(3)))+ ((1-isqrt(3))/(1+isqrt(3)))^(6)` is :

A

2

B

`-2`

C

1

D

0

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The correct Answer is:
a
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OBJECTIVE RD SHARMA ENGLISH-COMPLEX NUMBERS -Chapter Test
  1. The value of abs(sqrt( 2i) - sqrt(2i)) is :

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  2. Prove that the triangle formed by the points 1,(1+i)/(sqrt(2)),a n di ...

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  3. The value of ((1+ i sqrt(3))/(1-isqrt(3)))+ ((1-isqrt(3))/(1+isqrt(3)...

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  4. If alpha+ibeta=tan^(-1) (z), z=x+iy and alpha is constant, the locus o...

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  5. If cosA+cosB+cosC=0,sinA+sinB+sinC=0andA+B+C=180^(@) then the value of...

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  6. Find the sum 1xx(2-omega)xx(2-omega^(2))+2xx(-3-omega)xx(3-omega^(2))+...

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  7. The value of the expression (1+(1)/(omega))+(1+(1)/(omega^(2)))+(2+(1)...

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  8. The condition that x^(n+1)-x^(n)+1 shall be divisible by x^(2)-x+1 is ...

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  9. The expression (1+i)^(n1)+(1+i^(3))^(n2) is real iff

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  10. If |{:(6i,3i,1),(4,3i,-1),(20,3,i):}|=x+iy, then (x, y) is equal to

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  11. If cosalpha+2cosbeta+3cosgamma=sinalpha+2sinbeta+3singamma=0,t h e nt ...

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  12. If cosalpha+2cosbeta+3cosgamma=sinalpha+2sinbeta+3singamma=0,t h e nt ...

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  13. Sum of the series sum(r=0)^n (-1)^r ^nCr[i^(5r)+i^(6r)+i^(7r)+i^(8r)] ...

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  14. If az(1)+bz(2)+cz(3)=0 for complex numbers z(1),z(2),z(3) and real num...

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  15. If 2z1-3z2 + z3=0, then z1, z2 and z3 are represented by

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  16. If Re((z+4)/(2z-1)) = 1/2 then z is represented by a point lying on

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  17. The vertices of a square are z(1),z(2),z(3) and z(4) taken in the anti...

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  18. Let lambda in R . If the origin and the non-real roots of 2z^2+2z+lam...

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  19. If z(1),z(2),z(3), represent vertices of an equilateral triangle such ...

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  20. If P,P^(') represent the complex number z(1) and its additive inverse ...

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