Question

(n+1)!-(n)! = ??

Answer 1

n!(n+1)-n!
=n!(n+1-1)
=n!(n)

Answer 2

is this what you meant to write last time?

Answer 3

lol

Answer 4

yea..i got the sign wrong..sorry

Answer 5

but i didin't understand this One

Answer 6

how did u do it ??

Answer 7

\[(n+1)!=(n+1) \cdot n! \] do you understand this part?

Answer 8

yup

Answer 9

ok so we have
\[(n+1)n! \cdot -n!=n!(n+1-1)\]
right?

Answer 10

yeah right

Answer 11

that dot isn't suppose to be there

Answer 12

\[=n!(n)\]

Answer 13

1-1=0

Answer 14

thanks ..u were of great help :)

Answer 15

np