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Arithmetic Progressions — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsArithmetic Progressions1 Mark
MCQ
The sum of first $n$ even natural numbers is
  • A
    $2 n$
  • B
    $n^2$
  • ✓
    $n^2+n$
  • D
    $n^2-1$
✓

Answer

Correct option: C.
$n^2+n$
(C)$n^2+n$
Let $S_n$ be the sum of first $n$ even natural numbers. Then,

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