Question

Select the following series as finite or infinite.

5 + 10 + 15 + 20 + . . . + 5n + . . .

Finite
Infinite

Answer 1

Infinite because it keeps going

Answer 2

Step-by-step explanation

The given series is

5 + 10 + 15 + 20 + . . . + 5n + . . .

The first term of this series 5

The constant difference is:

d=10-5=5

The +... at the end of the series means it does continue to infinity.

The series is infinite