no option
no option again
Thanks for taking my question: How can I prove by induction the following: summation E (i=1 to n) of i * i! = (n+1)! -1 - thanks
Follow Math Help Forum on Facebook and Google+
Originally Posted by Rayk2003 Thanks for taking my question: How can I prove by induction the following: summation E (i=1 to n) of i * i! = (n+1)! -1 - thanks Hi, is it ? base case: ... verified. inductive step: suppose and let's prove it holds for too, i.e. we want to prove . inductive step verified.
View Tag Cloud