+0

# Telescoping Sequences

+1
100
1
+394

The nth term of a sequence is \(a_n = (-1)^{n+1}(3n + 2) \). What is the value of \(a_1 + a_2 + \dots + a_{100} \)?

Mar 16, 2021

#1
+201
0

we have a sequence that goes \(5, -8, 11...\), so we have 5 + (-3)*50=-145