If ${S_n}$ denotes the sum of $n$ terms of an arithmetic progression, then the value of $({S_{2n}} - {S_n})$ is equal to
If ${S_n}$ denotes the sum of $n$ terms of an arithmetic progression, then the value of $({S_{2n}} - {S_n})$ is equal to
- A
$2{S_n}$
- B
${S_{3n}}$
- C
$\frac{1}{3}{S_{3n}}$
- D
$\frac{1}{2}{S_n}$
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