chingyloke
Ex-Prince of Manchester.
- Joined
- Aug 4, 2007
- Messages
- 185
- Gender
- Male
- HSC
- 2009
I'm struggling with this induction Q...
The sum of n terms of an A.P. whose first term is "a" and common difference is "d" is given by Sn=n/2[2a+(n-1)d]
Prove this formula by induction.
i'm almost there...just having trouble matching my final expressions..can anybody help.
thanks in advance.
The sum of n terms of an A.P. whose first term is "a" and common difference is "d" is given by Sn=n/2[2a+(n-1)d]
Prove this formula by induction.
i'm almost there...just having trouble matching my final expressions..can anybody help.
thanks in advance.
