$\frac{C_1}{2} + \frac{C_3}{4} + \frac{C_5}{6} + \dots$ નું મૂલ્ય કેટલું થાય?

  • 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

$^{4n}C_0 + ^{4n}C_4 + ^{4n}C_8 + ... + ^{4n}C_{4n}$ નું મૂલ્ય શું છે?

Difficult
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જો ${S_n} = \sum\limits_{r = 0}^n {\frac{1}{{^n{C_r}}}} $ અને ${t_n} = \sum\limits_{r = 0}^n {\frac{r}{{^n{C_r}}}} $ હોય,તો $\frac{{{t_n}}}{{{S_n}}}$ ની કિંમત શું થાય?

$C_0 C_r + C_1 C_{r+1} + C_2 C_{r+2} + \dots + C_{n-r} C_n =$

Difficult
View Solution

જો $n \geq 2$ એ ધન પૂર્ણાંક હોય,તો શ્રેણી ${}^{n+1} C_{2}+2\left({}^{2} C_{2}+{}^{3} C_{2}+{}^{4} C_{2}+\ldots+{}^{n} C_{2}\right)$ નો સરવાળો ...... થાય.

$\binom{10}{1} + \binom{10}{2} + \binom{11}{3} + \binom{12}{4} + \binom{13}{5} = \dots$

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