MCQ
$2 + 4 + 7 + 11 + 16 + ....... n$ પદ સુધી સરવાળો મેળવો.
- A$\frac{1}{6}\,({n^2}\, + \,3n\, + \,8)$
- ✓$\frac{n}{6}\,({n^2} + 3n\, + \,8)$
- C$\frac{1}{6}\,({n^2} - 3n\, + \,8)$
- D$\frac{n}{6}\,({n^2} - 3n + 8)$
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