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The continued product of all values of r...

The continued product of all values of `root(5)(4)` is

A

A) `1/2`

B

B) `-1/2`

C

C) 4

D

D) -4

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The correct Answer is:
C
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AAKASH SERIES-DEMOIVRE'S THEOREM-PRACTICE EXERCISE
  1. If x(n)=cos((pi)/(4^(n)))+i sin ((pi)/(4^(n))), then x(1), x(2), x(3)....

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  2. The continued product of the four values of (1-isqrt3)^(3//4) is

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  3. The continued product of all values of root(5)(4) is

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  4. sum(r=1)^(8)[sin(2pir//9)+icos(2pir//9)]=

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  5. The values of sum(m=1)^(10)[sin(2pim//11)-icos(2pim//11)] is

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  6. If cosalpha+cosbeta+cosgamma=0=sinalpha+sinbeta+singamma then sin3alph...

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  7. If cos alpha+cos beta+cos gamma=0 & sin alpha +sin beta +sin gamma=0. ...

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  8. If cos alpha+cosbeta+cosgamma = 0 = sinalpha + sinbeta + singamma then...

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  9. If cosalpha+cosbeta+cosgamma=0=sinalpha+sinbeta+singamma then sin(2alp...

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  10. If cosalpha+cosbeta+cosgamma=0=sin alpha+sinbeta+singamma then cos^2al...

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  11. If cosalpha+coabeta+cosgamma=0=sinalpha+sinbeta+singamma then cos(alph...

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  12. If a=cisalpha,b=cisbeta,c=cisgamma, and a/b+b/c+c/a-1=0 then cos(alph...

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  13. If A+B+C= pi and cos A+cos B+cos C=0=sin A+sin B+sin C , then sin 3A+...

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  14. The cube roots of 1+I are

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  15. The values of (sqrt3+i)^(1//4) are

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  16. The values of (1+i)^(2//3) are

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  17. All the values of (-i)^(1//3) are given by

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  18. If x^4-1=0 then x=

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  19. Solve x^9-x^5+x^4-1=0

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  20. 1,alpha1,alpha2,alpha3…..alpha(n-1) are the n^(th) roots of unity and ...

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