easy limits

\lim_{n\rightarrow \infty }(\left(n^{2}-n^{3})^{1/3}+n \right)

not my doubt......found it gud

6 Answers

1
Che ·

nope

23
qwerty ·

sry sry sry a small mistake

62
Lokesh Verma ·

The same logic works .. doesn;t it ;)

1
Che ·

yes bhaiya.....nearly same thing.....and ya xyz its 1/3

1
xYz ·

ur limit is :
n(1-(1-1/n)1/3)
expanding the underlined expression using newton's binomial theorem we get the answer?
wats ur approach?

1
Che ·

well i had a diff method

use of this formula

a+b=a3+b3a2-ab+b2 somwhere :P

lim n→∞ (n.(1n-1)1/3 +n)

lim n→∞ n( (1n -1)1/3 + 11/3)

now apply this formula

a+b=a3+b3a2-ab+b2

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