$\frac{C_1}{2} + \frac{C_3}{4} + \frac{C_5}{6} + \dots$ का मान किसके बराबर है?

  • A
    $\frac{2^n - 1}{n + 1}$
  • B
    $n \cdot 2^n$
  • C
    $\frac{2^n}{n}$
  • D
    $\frac{2^n + 1}{n + 1}$

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Similar Questions

यदि ${}^{21}C_1 + 3 \cdot {}^{21}C_3 + 5 \cdot {}^{21}C_5 + \dots + 19 \cdot {}^{21}C_{19} + 21 \cdot {}^{21}C_{21} = k$ है,तो $k$ के अभाज्य गुणनखंडों की संख्या क्या है?

$\frac{C_0}{1} + \frac{C_1}{2} + \frac{C_2}{3} + .... + \frac{C_n}{n + 1} = $

$\frac{1}{1!(n - 1)!} + \frac{1}{3!(n - 3)!} + \frac{1}{5!(n - 5)!} + \dots = $

$\mathop \sum \limits_{0 \le i < j \le n} i \binom{n}{j}$ का मान ज्ञात कीजिए।

निम्नलिखित श्रेणी $\frac{C_0}{2} - \frac{C_1}{3} + \frac{C_2}{4} - \frac{C_3}{5} + \dots$ के $(n + 1)$ पदों का योग क्या है?

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