Question

Find the sum of the first 50 terms of the arithmetic sequence below
-13 -9 -5 -1

Answer 1

Step-by-step explanation:

common difference=4

first term= -13

50th term of the sequence=4*50+(-13)-4

=183

sum of first 50 terms= 50/2(-13+183)

=25*170

= 4250