$12 + 16 + 24 + 40 + \dots$ શ્રેણીના $n$ પદોનો સરવાળો કેટલો થશે?

  • A
    $2(2^n - 1) + 8n$
  • B
    $2(2^n - 1) + 6n$
  • C
    $3(2^n - 1) + 8n$
  • D
    $4(2^n - 1) + 8n$

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Similar Questions

ચોક્કસ વિધેય $u_{x}$ માટે,જો $u_{0}=3, u_{1}=12, u_{2}=81, u_{3}=200, u_{4}=100, u_{5}=8$ આપેલ હોય,તો $\Delta^{5} u_{x}$ ની કિંમત શોધો.

જો $7 = 5 + \frac{1}{7}(5 + \alpha) + \frac{1}{7^2}(5 + 2\alpha) + \frac{1}{7^3}(5 + 3\alpha) + \dots \infty$ હોય,તો $\alpha$ ની કિંમત શોધો:

સરવાળો શોધો: $\sum\limits_{k = 1}^n {k\left( {1 + \frac{1}{n}} \right)^{k - 1}}$

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જો $8 = 3 + \frac{1}{4}(3 + p) + \frac{1}{4^2}(3 + 2p) + \frac{1}{4^3}(3 + 3p) + \dots \infty$ હોય,તો $p$ ની કિંમત શોધો.

$1 + 2 \cdot 2 + 3 \cdot 2^2 + 4 \cdot 2^3 + \dots + 100 \cdot 2^{99} = \dots$

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