# Thread: Show that A(1,n) = 2^n whenever n greater than or equal to 1

1. ## Show that A(1,n) = 2^n whenever n greater than or equal to 1

Problem :: Show that A(1,n) = 2^n whenever n greater than or equal to 1:

This is what i have so far:
proof by induction:

Basis Step: n =1 so we need to comput A(1,1) and A(1,1) equals 3

Inductive Step: Assume A(1, n-1) = 2^(n-1) and consider A(1, n)

I dont know if any of this is correct.. need some help here

2. No one can possibly help you if you do not supply every definition.
For example, what does A(k,m) mean?

3. I am stuck on this same problem. But I think we do use induction.I have this:

Base Case:
A(1, n) = n + 2
n + 2 = 2^(n) Let n = 2
2 + 2 = 2^(2)
4 = 4 Base case holds

Induction Step:
We going to assume P(k) is true for all integers of k > 1

Induction Step (Confused Here):
We must prove for P(k+1)

What do I do next b/c I cant solve this?

5. Originally Posted by HallsofIvy
what do you mean by defined b/c the question is word for word straight from the book from the exercises? You want me to pop a link so you guys can see it??

6. Originally Posted by Grillakis
what do you mean by defined b/c the question is word for word straight from the book from the exercises? You want me to pop a link so you guys can see it??
This question is same as has been asked here , its better if a staff member adds the two thread

This question is same as has been asked here , its better if a staff member adds the two thread
or delete 1 of them

This question is same as has been asked here , its better if a staff member adds the two thread
How do you change the text of a Link - as you have done here? (Except mine's not a real link, of course!)

Hello ADARSHHow do you change the text of a Link - as you have done here? (Except mine's not a real link, of course!)

select text and click on---- --> image , and then enter the url on the box that pops up

10. @ Grandad : the code is :

(note that the part "name for the link" can include bbcode such as bold, color, etc...)

for example :

or delete 1 of them
Why one rather than another ?

11. ## Changing the text of a link

Originally Posted by Moo
@ Grandad : the code is :

(note that the part "name for the link" can include bbcode such as bold, color, etc...)

for example :