Question

What are sequence and series?

Answer 1

Sequence: A sequence is a group of numbers in an ordered way following a pattern.

Series: A series is a sum of the elements of the sequence.

Example: $2,4,6,8,10,....$ is an arithmetic sequence with a common difference $2$.

Then the corresponding series is $2+4+6+8+10+....$.

The series can be finite and infinite which depends on the type of sequence whether it is finite or infinite.