Question

Find the sum of the first 50 terms of the sequence below.
a^n = 3n + 2
http://i.imgur.com/0MB45HL.png

Answer 1

Ah, sequence problems. I remember doing these.
First you need to find the first term, and the 50th term.

Answer 2

so input 1 and 50 for n.

Answer 3

3(1) + 2 = 5
3(50) + 2 = 152

Answer 4

s(50) =1/2(5+152)(50)
s(50) = 78.5(50)

Answer 5

s(50)= 3925

Answer 6

thank you