Write each series in sigma notation and find the sum or an expression for the sum. Homework Help ✎
47 + 34 + 21 + … + (−83)
3 + 10 + 17 + … + (3 + 7(n − 1))
What is the expression for the sequence?
How many terms are there in the series?
One possible answer:
Instead of going up to a specific term, this series sums up the first n terms of the sequence given in parentheses.