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sum of 1! +2! + 3! +.....+ 2012!

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given: 1! +2! + 3! +.....+ 2012! , now take 2012! common, then
=2012!(1!/2012! +2!/2012! + 3!/2012! +.....+ 2011!/2012!+1)
but,2012! has very large value. so,we assume (1!/2012! +2!/2012! + 3!/2012! +.....)= zero
now , we have
2012!(0+....+0+ 2011!/2012! + 1),by solving we get
=2012!(1/2012 + 1)
=2012!(2013/2012)
ans:2013!/2012
11 years agoHelpfull: Yes(39) No(4)

2013!-1 is the answer
11 years agoHelpfull: Yes(7) No(23)
anyone plz give solution....:)
11 years agoHelpfull: Yes(3) No(2)
2012!(1!/2012!+2!/2012!+3!/2012!+.............+1/2012+1)
value of (1!/2012!+............+1)=almost1
so,ans=approx. 2012!
11 years agoHelpfull: Yes(3) No(3)
n*n!=(n+1)!-n!
2013!-1
11 years agoHelpfull: Yes(3) No(3)
(2012+1)!=2013!
11 years agoHelpfull: Yes(1) No(2)
n*n!=(n+1)!-n!=2013!-1.
11 years agoHelpfull: Yes(1) No(3)
2013!-1 is the answer
11 years agoHelpfull: Yes(1) No(0)
what will be correct ans... by different answers we are getting confuse... so admin plz post the correct answer ...
11 years agoHelpfull: Yes(0) No(0)

TCS Other Question

WHEN THE NUMBERS ARE WRITTEN IN BASE b, WE HAVEE 15*25=414 THEN THE VALUE OF bis. In a G6 summits beings held at London, a French, a German, An Italian, a British, a Spanish and a Polish diplomat represent their respective countries and participate in a round table conference to strengthen co-operation between these countries. There are exactly six chairs evenly spaced around a circular table. The chairs are numbered 1 through 6, with successively numbers chairs next to each other and chair number 1 next to chair 6. Each chair is occupied by one of the diplomats. The following condition apply :
-Polish sits immediately next to the British
-German sits immediately next to Italian, British, or both
-French does not sit immediately next to Italian
-If Spanish sits immediately next to Polish, Spanish does not sit immediately next to
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Italian.
Which one of the following sitting arrangements of the six diplomats in chairs 1 through 6 would NOT violate the stated conditions?
(A) French, Polish, British, Italian, Spanish, German
(B) French, German, Italian, Polish, British, Spanish
(C) French, German, Italian, Spanish, Polish, British
(D) French, Spanish, Polish, British, German, Italian
(E) French, British, German, Spanish, Italian, Polish
(a) C
(b) D
(c) A
(d) B