Tag: series

When each term of a sequence is connected using a $+$ or a $-$ sign, then it is referred to as the series of numbers. For example, $2 + 5 + 8 + 11 + 15 + 18 + ....$ is a series of numbers. Thus the correct answer is '$a$'.

The series is $\text{x++/xxx+++/ xxxx++++/x}$. Thus, the letters are repeated twice, thrice and so on.

Adding all the terms in a sequence is called series.
Example: 1 + 2 + 3 + 4 is a series.

$1 + 2 + 3 + 4 + 5 +.....$ is a series.
As sum of all numbers in some set is called as a series.

A sum of an infinite sequence it is called a series.
Example: $2 + 4 + 6 + 8 +....$ is a series.

$\sum _{n=1}^{10}nk^2$ is a series.
Since $\sum _{n=1}^{10}nk^2= k^2+2k^2+3k^2+4k^2+5k^2+6k^2+7k^2+8k^2+9k^2+10k^2$
So, sum of all the terms in a sequence is called series.

$1 + 2 + 3 + 4 + 5$ is a series.

The sum of first $5$ odd numbers is called series.
Example: $1 + 3 + 5 + 7 + 9 $ is a series.

Given series is $1 + 3 + 5 + 7 $ _

Adding first $100$ terms in a sequence is called series.