If Sn = n^2 + 3n, determine an expression for tn.
How do I find tn?
I know my formulas for finding the sum, but I don't know how to find tn.
Do I use the formulas for arithmetic or geometric? Thanks for some guidance.
If Sn = n^2 + 3n, determine an expression for tn.
How do I find tn?
I know my formulas for finding the sum, but I don't know how to find tn.
Do I use the formulas for arithmetic or geometric? Thanks for some guidance.