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Old 2005 April 14th, 06:36 PM   #1 (permalink)
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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.
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Old 2005 April 14th, 09:25 PM   #2 (permalink)
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Re: A simple question

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
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Old 2005 April 15th, 12:07 AM   #3 (permalink)
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Re: A simple question

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 ?
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Old 2005 April 15th, 01:23 AM   #4 (permalink)
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Re: A simple question

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Originally Posted by greycellz
Are you talking about n! or something ?
Yes... there is no shortcut, right?
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Old 2005 April 15th, 03:28 AM   #5 (permalink)
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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.
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Old 2005 April 17th, 11:49 AM   #6 (permalink)
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Re: A simple question

A sily Q. When we say between 1 and 30, does it include the boundaries also?
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Old 2005 April 17th, 05:10 PM   #7 (permalink)
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Re: A simple question

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.
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