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lim(ntooo) ((n^(2)-n+1)/(n^(2)-n-1))^(n(...

`lim_(ntooo) ((n^(2)-n+1)/(n^(2)-n-1))^(n(n-1))` is equal to

A

`underset(xto0)lim([x+|x|])/(x)=0`, where `[x]` denotes the greatest integer functions.

B

`underset(xto0)lim(xe^((1)/(x)))/(1+e^((1)/(x)))=0`

C

`underset(xto3)lim(x-3)^((1)/(5))sgn(x-3)=0`, where sgn stands for signum function.

D

`underset(xto0)lim(tan^(-1)|x|)/(x)=0`

Text Solution

Verified by Experts

The correct Answer is:
B
`underset(ntooo)lim((n^(2)-n+1)/(n^(2)-n-1))^(n(n-1))=underset(ntooo)lim((n(n-1)+1)/(n(n-1)-1))^(n(n-1))`
`=underset(ntooo)lim((1+(1)/(n(n-1)))^(n(n-1)))/((1-(1)/(n(n-1)))^(n(n-1)))=(e)/(e^(-1))=e^(2)`
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CENGAGE ENGLISH-LIMITS-Exercises (Single Correct Answer Type)
  1. lim(xto0) ((2^(m)+x)^(1//m)-(2^(n)+x)^(1//n))/(x) is equal to

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  2. The value of lim(ntooo) [(1)/(n)+(e^(1//n))/(n)+(e^(2//n))/(n)+...+(e^...

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  3. lim(xto1) (nx^(n-1)-(n+1)x^(n)+1)/((e^(x)-e)sinpix), where n=100,is eq...

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  4. lim(xto0) (log(1+x+x^(2))+log(1-x+x^(2)))/(secx-cosx)=

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  5. The value of lim(xtooo) (root(3)(x^(3)+2x^(2))-sqrt(x^(2)+x)) is

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  6. The value of lim(xto0) (1+sinx-cosx+log(1-x))/(x^(3)) is

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  7. If lim(xtoa)f(x)=1 and lim(xtoa)g(x)=oo then lim(xtoa){f(x)}^(g(x))=e^...

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  8. If ("lim")(xvec0)(x^(-3)sin3x+a x^(-2)+b) exists and is equal to 0, th...

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  9. If lim(x->0)(x^n-sinx^n)/(x-sin^n x) is non-zero finite, then n must b...

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  10. lim(xto0) ((1+tanx)/(1+sinx))^(cosecx) is equal to

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  11. The value of lim(xto1) (2-x)^(tan((pix)/(2))) is

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  12. The value of lim(mtooo) ("cos"(x)/(m))^(m) is

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  13. lim(ntooo) ((n^(2)-n+1)/(n^(2)-n-1))^(n(n-1)) is equal to

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  14. lim(ntooo) {((n)/(n+1))^(alpha)+"sin"(1)/(n)}^(n) (where alphainQ) is ...

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  15. lim(xtooo) [((e)/(1-e))((1)/(e)-(x)/(1+x))]^(x) is

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  16. lim(x->0)((1^x+2^x+3^x+....+n^x)/n)^(1/x)

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  17. The value of lim(x to 1) ((p)/(1-x^(p))-(q)/(1-xq)),p,q,inN, equals

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  18. lim(xtooo) (x(logx)^(3))/(1+x+x^(2)) equals

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  19. lim(x->oo)cot^(-1)(x^(-a)loga x)/(sec^(-1)(a^xlogx a)),(a >1)is equal ...

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  20. The value of lim(ntooo)(e^(n))/((1+(1)/(n))^(n^(2)))is (a) -1 (b) 0 ...

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