Limit

Q1 Find F(x)=limn→∞(x2nf(x)+g(x)x2n+1)
when:
a)x<-1
b)-1<x<0
c)0<x<1
d)x>1
where f(x) and g(x) are continuous functions

Q2 limn→∞ ann! ; a ε R

Q3 limn→∞ (1+1a1)(1+1a2)(1+1a3)...(1+1an)
where a1=1 and an=n(1+an-1) for n≥2

8 Answers

1
Anirudh Kumar ·

ans 1)

a) lim= f(x) x<-1
b) lim = g(x) -1<x<0
c) lim=g(x) 0<x<1
d lim = f(x) x>1

2) 0

1
Che ·

http://targetiit.com/iit-jee-forum/posts/limits-11996.html

1
nikunj ·

How ?

1
Anirudh Kumar ·

do you have the answers ? tell whether they are correct or wrong.

1
xYz ·

@anirudh hoe did u do
2nd one ?

1
Anirudh Kumar ·

a^{n}=e^{n*lna}

thus
\frac{a^{n}}{n!}= \frac{1+\frac{n*lna}{1!}+\frac{(n*lna)^{2}}{2!}+...}{n!}

above limit n→0 is zero.

1
rajatjain_ix ·

3) 1
is it correct?

1
Che ·

@rajat ans for 3rd is e ......its a very common q .....i posted teh link for it btw..

Your Answer

Close [X]