- #1
vishnu manoj
- 13
- 0
Homework Statement
what is the general formula for the sequence (1/1*3+1/3*6+1/6*10+1/10*15...)
Homework Equations
i used the equation n/mn+1 but am not able to use it for this sequence
The Attempt at a Solution
I found the sequence of the denominators which is (1/2)n^2+(1/2)n but am not able to find the general formula for the sum of this sequence. apparently 1/mn+! doesn't work either.