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lim(nrarroo) (1-x+x.root n e)^(n) is eq...

`lim_(nrarroo) (1-x+x.root n e)^(n)` is equal to

A

`e^(x)`

B

`e^(-x)`

C

`e^(2x)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
`underset(nrarroo)(lim)(1-x+x.rootn(e))^(n)" "(1^(oo)"form")`
`=e^(underset(nrarroo)(lim)(1-x+xe^(1//n)-1))`
`=e^(x)e^(underset(nrarroo)(lim)((e^(1//n)-1))/(1//n))`
`=e^(x)`
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CENGAGE ENGLISH-LIMITS-Single Correct Answer Type
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  2. If f(x)=lim(nrarroo) (cos(x)/(sqrtn))^(n), then the value of lim(xrarr...

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  3. lim(xrarr0) (log(e^(x^(2))+2sqrtx))/(tansqrtx) is equal to

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  4. Let f:RrarrR be such that f(a)=1, f(a)=2. Then lim(x to 0)((f^(2)(a+x)...

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  5. The value of (lim)(nvecoo)((sqrt(n^2+n)-1)/n)^2sqrt(n^(2+n)-1) is e b....

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  6. If f(n)=underset(xto0)lim{(1+"sin"(x)/(2))(1+"sin"(x)/(2^(2)))...(1+"s...

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  7. lim(nrarroo) (1-x+x.root n e)^(n) is equal to

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  8. The value of lim(xrarr1) (root(13)x-root7x)/(root5x-root3x) is

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  9. The value of underset(xrarr1)(lim)(root(13)x-root7x)/(root5x-root3x) i...

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  10. The value of lim(x rarr 0) (1-cos2x)/(e^(x^(2))-e^(x)+x) is

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  11. If f^(prime)(a)=1/4, t h e n(lim)(hvec0)(f(a+2h^2)-f(a-2h^2))/(f(a+h^3...

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  12. (lim)(xvec0^+)1/(xsqrt(x))("a t a n"^(-1)(sqrt(x))/a-btan^(-1)(sqrt(x)...

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  13. The value of lim(x->0)((1+2x)/(1+3x))^(1/x^2)e^(1/x) is e^(5/2) b. e^2...

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  14. Let f : R rarr R be a differentiable function at x = 0 satisfying f(0)...

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  15. The value of lim(xrarr(3pi)/(4)) (1+root3(tanx))/(1-2cos^(2)x) is

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  16. Let g(x)=((x-1)^(n))/(logcos^(m)(x-1)),0ltxlt2 m and n integers, m ne0...

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  17. Number of integral values of lambda for which (lim)(xvec1)sec^(-1)((la...

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  18. If lim(xrarr0) (e^(ax)-e^(x)-x)/(x^(2))=b (finite), then

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  19. If lim(xrarr0)(x^3)/(sqrt(a+x)(bx-sinx))=1,agt0, then a+b is equal to

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  20. If lim(xrarroo) xlog(e)(|(alpha//x,1,gamma),(0,1//x,beta),(1,0,1//x)|)...

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