hit patel
New Member
- Joined
- Mar 14, 2012
- Messages
- 568
- Gender
- Male
- HSC
- 2014
- Uni Grad
- 2018
Re: HSC 2014 4U Marathon
What do the other answers use? harder ext 1?If you mean I_(n-1) + I_n = 1/(2n-1) then this is fine since if we just make n -> n+1 we get
I_((n+1) - 1) + I_(n+1) = 1/(2(n+1)-1)
I_n + I_(n+1) = 1/(2n+1)