The Gateway to Computer Science Excellence
+2 votes

Find the value of above limit.

How to approach with  this type of infinity power infinity problems ??

im thinking like first we should convert this to 1 power infinity problem and then solve??

is it correct ?? please solve above que

in Mathematical Logic by Active (1.3k points) | 87 views
Is it $1?$
yes , please explain .........
Simply take $t = \frac{1}{n}$ Now when $n \rightarrow  \infty \text{   (approaches to)}$ then $t \rightarrow  0 \text{   (approaches to)}$

And put in the above expression. Then plugin t = 0. You get $({\frac{2}{3}})^0$ which is 1.
Now when n→0 (approaches to)n→0 (approaches to) then t→0 (approaches to)

this is wrong i think

when n->0 then t-> to infinity........??

1 Answer

+1 vote
$\large \lim_{n\rightarrow \infty} \left ( \frac{2n^{2}}{3n^{2}+1} \right )^{\LARGE \frac{-3n+{2}}{5n^{2}-3}}$

Let n = $\large \frac{1}{t} $

$\large \lim_{t\rightarrow 0} \left ( \frac{\frac {2}{t^{2}}}{\frac {3}{t^{2}}+1} \right )^{\LARGE \frac{\frac {-3}{t} +{2}}{\frac {5}{t^{2}}-3}}$

$\large \lim_{t\rightarrow 0} \left ( \frac{2}{3 + t^{2}} \right )^{\LARGE \frac{t(-3 +{2t})}{5-3t^{2}}}$

$\large \left ( \frac{2}{3 + 0^{2}} \right )^0$

The answer is $ 1$
by Boss (36.5k points)
yeah i'm not good with calculus. can you post the correct answer?

@Utkarsh ,I think ur solution is another way is just divide numerator and denominator by nin both ( 2n2/3n2+1) and its power..and put n = ∞ ,it will become (2/3)0 =1


 ankitgupta yeah that's easier thanks i'll update the answer

Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true
50,737 questions
57,291 answers
104,903 users