What is the formula to find the value of 1*1!+2*2!+3*3!+...................................+10*10!
doraemondorami2:
you said the answer will be appeared in 10 minutes but it is from 20 minutes i am waiting
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Answered by
2
The formula for 1*1!+2*2!+.......+n*n!=(n+1)!-1
=>1*1!+2*2!+....+10*10!=(10+1)!-1
=11!-1
=39916800
=>1*1!+2*2!+....+10*10!=(10+1)!-1
=11!-1
=39916800
Answered by
0
this does not have any formula just refer ur maths book its from permutation chapter.
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