Anku posted an Question
December 12, 2021 • 12:44 pm 30 points
  • IIT JAM
  • Mathematics (MA)

How to solve pls once show steps..

how to solve pls once show steps... . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . .

2 Answer(s) Answer Now
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  • Anonymous User best-answer

    its right answer is c consider a sequence Xn. =0 prime 1 otherwise then x2n converge to 1 ie K=1 x3n converge to 1 ie L=1 K=L but Xn not convergent

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    for more watch https://youtu.be/wrIOTlVm4hY

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    watch vedio

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    cos(npi) = (-1)^n so (-1)^3n = -1or 1

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    Deepak singh 1 Best Answer

    Refer attachment option d

    cropped6583278590634209270.jpg
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    sir option 2 is also correct as per answer key

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    take xn= sin(πn) then option b is incorrect .

  • Anonymous User

    if xn=(-1)^n. then X2n=1 and x3n=-1 options D xn=1/n then x2n=1/2n k=0 and x3=1/4n L=0 K=L

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    for option d you took sequence xn=(-1)ⁿthen x2n=1 BUT x3n={1,-1} because x3=-1 and x6=1 and x9=-1 and so on

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    yes

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