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Stormgal · 2005 April 14th, 06:36 PM

Can anyone show me the shortcut for this simple problem - I can't believe I forgot:
For example, find the product of all the integers between 1 and 30.

mananmehra · 2005 April 14th, 09:25 PM

Quote:

Originally Posted by Stormgal

Can anyone show me the shortcut for this simple problem - I can't believe I forgot:
For example, find the product of all the integers between 1 and 30.

I am not sure if there are short cuts for this, i know of shortcut for sum of all integers between 1 and 30 which can be caculated by formula (n(n+1))/2.

If this is not what you meant, please pardon my ignorance

greycellz · 2005 April 15th, 12:07 AM

Quote:

Originally Posted by Stormgal

Can anyone show me the shortcut for this simple problem - I can't believe I forgot:
For example, find the product of all the integers between 1 and 30.

Are you talking about n! or something ?

Stormgal · 2005 April 15th, 01:23 AM

Quote:

Originally Posted by greycellz

Are you talking about n! or something ?

Yes... there is no shortcut, right?

greycellz · 2005 April 15th, 03:28 AM

You just gotta remember that (n+1)! = (n+1).n! etc. So if you have to find a correlation you can use that.

ajitkd · 2005 April 17th, 11:49 AM

A sily Q. When we say between 1 and 30, does it include the boundaries also?

lego2401 · 2005 April 17th, 05:10 PM

Quote:

Originally Posted by ajitkd

A sily Q. When we say between 1 and 30, does it include the boundaries also?

ETS will tell you that. If the say 1 to 50 inclusive, then yes.
Otherwise no.

2005 April 14th, 06:36 PM	#1 (permalink)
Stormgal Within my grasp! Join Date: Nov 2004 Location: New York City Posts: 388	A simple question Can anyone show me the shortcut for this simple problem - I can't believe I forgot: For example, find the product of all the integers between 1 and 30.

2005 April 15th, 03:28 AM	#5 (permalink)
greycellz TestMagic Guru-in-Training Join Date: Feb 2005 Location: New Jersey Posts: 855	Re: A simple question You just gotta remember that (n+1)! = (n+1).n! etc. So if you have to find a correlation you can use that.

2005 April 17th, 11:49 AM	#6 (permalink)
ajitkd I JUST got here. Join Date: Apr 2005 Location: INDIA Posts: 5	Re: A simple question A sily Q. When we say between 1 and 30, does it include the boundaries also?

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