$2 + 4 + 7 + 11 + 16 + \dots$ શ્રેણીનો $n$ પદ સુધીનો સરવાળો શોધો.

  • A
    $\frac{1}{6}(n^2 + 3n + 8)$
  • B
    $\frac{n}{6}(n^2 + 3n + 8)$
  • C
    $\frac{1}{6}(n^2 - 3n + 8)$
  • D
    $\frac{n}{6}(n^2 - 3n + 8)$

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Similar Questions

$2^2 + 4^2 + 6^2 + \dots + (2n)^2 = \dots$

Difficult
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જો $\left(\frac{1}{\alpha+1}+\frac{1}{\alpha+2}+\ldots+\frac{1}{\alpha+1012}\right) - \left(\frac{1}{2 \cdot 1}+\frac{1}{4 \cdot 3}+\frac{1}{6 \cdot 5}+\ldots+\frac{1}{2024 \cdot 2023}\right) = \frac{1}{2024}$,હોય તો $\alpha$ ની કિંમત શોધો.

$\sum\limits_{m = 1}^n {{m^2}}$ ની કિંમત શું થાય?

નીચેની શ્રેણી $(1 \times 3) + (3 \times 5) + (5 \times 7) + (7 \times 9) + \dots$ નું $n^{th}$ પદ શું હશે?

શ્રેણી $\frac{1^{2}}{1} + \frac{1^{2}+2^{2}}{1+2} + \frac{1^{2}+2^{2}+3^{2}}{1+2+3} + \ldots$ ના પ્રથમ $n$ પદોનો સરવાળો શોધો.

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