Sunday, 19 February 2017

elementary number theory - Prove by induction that 5n−1 is divisible by 4.


Prove by induction that 5n−1 is divisible by 4.




How should I use induction in this problem. Do you have any hints for solving this problem?




Thank you so much.

-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

real analysis - How to find limhrightarrow0fracsin(ha)h

How to find lim without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...