Heyy Forum

Im having difficulty figuring out this question soo any help would be greatly appriciated

Thanks so much (Happy)

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- Jul 12th 2010, 01:04 PMjess0517Help Mathematical Proofs pleasee
Heyy Forum

Im having difficulty figuring out this question soo any help would be greatly appriciated

Thanks so much (Happy)

Attachment 18180 - Jul 12th 2010, 02:05 PMroninpro
Did you try working out the product for different values of ?

- Jul 12th 2010, 02:07 PMjess0517
- Jul 12th 2010, 02:08 PMroninpro
I computed the values for :

Do you see a pattern, at least in the denominators? - Jul 12th 2010, 02:10 PMtonio
- Jul 12th 2010, 03:57 PMSoroban
Hello, jess0517!

Quote:

Find a prove a formula for: .

I cranked out the first few partial products:

. .

It appears that: .

I'll letsupply the proof.*you*

- Jul 12th 2010, 04:12 PMmeleseDirect computation.
I assume "find and prove" means that induction is involved.

But anyway you could find the value of by direct manipulation of the terms of the product . - Jul 13th 2010, 01:21 AMOpalg
Notice that . Therefore

Now start cancelling: each of the two factors in the numerators cancels with a factor in a neighbouring denominator. The only terms left uncancelled are at the start and at the end. - Jul 13th 2010, 11:03 AMjess0517
- Jul 14th 2010, 03:26 AMmr fantastic
Thread closed due to this member deleting questions after getting help.