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Ask iit jee aieee pet cbse icse state board community Discussion Response Post to: SIMPLE ONE--------------------------------------**********
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[Post New]11 May 2007 01:57:27 IST
    Subject: Re:SIMPLE ONE--------------------------------------**********
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jaysunantony (171)

Scorching goIITian

Olaaa!! Perrrfect answer. 29  [42 rates]
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okay.........lets generalise........

1.1! +2.2!+3.3!+4.4!+....................+n.n!

n.n!  = [n+1-1].n ! = [n+1] !  -   n !

Now apply the formula, u will get,

1.1! +2.2!+3.3!+4.4!+....................+34.34!

= [2! - 1! ] + [ 3! - 2! ] +..........................[35!-34!]

= 35 !  - 1!......                                         all others get cancelled. see again

So..........................I am right..............pls .rate me................bye......
My name is Jaysun Antony.........

Whatever we do............the final decision is God's.......

 this reply: 43 points  (with 7 Olaaa!! Perrrfect answer.   in 11 votes )   [?]
 
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