Answer to Question #21714 in Abstract Algebra for Samuel

Question #21714

Find the sum of 120 + 119 + 118 + .... + 3 + 2 + 1

Expert's answer

this is the sum of first 120 terms of arithmeticprogression so a1=120, a120=1, n=120 hence from the formula:
s=(120+1)*120/2=60*121=7260

Learn more about our help with Assignments: Abstract Algebra

No comments. Be the first!

Who Can Help Me with My Assignment

There are three certainties in this world: Death, Taxes and Homework Assignments. No matter where you study, and no matter…
How to Finish Assignments When You Can’t

Crunch time is coming, deadlines need to be met, essays need to be submitted, and tests should be studied for.…
How to Effectively Study for a Math Test

Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…