- #1
CathyLou
- 173
- 1
I'd really appreciate it if someone could please help me with this question as I'm really stuck on it.
Prove that the sum of the first n terms of an arithmatic series with first term a and common difference d is given by
1/2[2a + (n-1) d]
Thank you.
Cathy
Prove that the sum of the first n terms of an arithmatic series with first term a and common difference d is given by
1/2[2a + (n-1) d]
Thank you.
Cathy