Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2010-09-22 05:27:34

engrymbiff
Member
Registered: 2010-06-14
Posts: 30

2 problems: limit and inverse

I have 2 problems.

#1:

What is the limit of

as
goes to
? (
and
is a constant)

#2:

Does

have an inverse or not? If so, what is it?

/ Thanks and good luck

Offline

#2 2010-09-22 08:02:08

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 2 problems: limit and inverse

Hi engrymbiff;


#2
I believe so but not in terms of elementary functions.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3 2010-09-23 14:28:56

George,Y
Member
Registered: 2006-03-12
Posts: 1,379

Re: 2 problems: limit and inverse

y=x*ln(x)   x>0
exp(y)=exp(ln(x)*x)=x^x


X'(y-Xβ)=0

Offline

#4 2010-09-23 17:16:13

engrymbiff
Member
Registered: 2010-06-14
Posts: 30

Re: 2 problems: limit and inverse

George,y: Sorry but thats not the inverse function

Offline

#5 2010-09-27 05:38:23

engrymbiff
Member
Registered: 2010-06-14
Posts: 30

Re: 2 problems: limit and inverse

no one?

Offline

Board footer

Powered by FluxBB