જો $3 \leq r \leq 30$ માટે, $\binom{30}{30-r} + 3\binom{30}{31-r} + 3\binom{30}{32-r} + \binom{30}{33-r} = \binom{m}{r}$ હોય, તો $m$ ની કિંમત શોધો:

  • A
    $31$
  • B
    $32$
  • C
    $33$
  • D
    $34$

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Similar Questions

જો $\sum_{r=1}^{30} \frac{r^2({}^{30}C_r)^2}{{}^{30}C_{r-1}} = \alpha \times 2^{29}$ હોય,તો $\alpha$ ની કિંમત શોધો.

$\binom{47}{4} + \sum_{r=1}^5 \binom{52-r}{3} = \dots$

જો $\sum\limits_{k=1}^{31} \binom{31}{k} \binom{31}{k-1} - \sum\limits_{k=1}^{30} \binom{30}{k} \binom{30}{k-1} = \frac{\alpha(60!)}{(30!)(31!)}$,જ્યાં $\alpha \in R$,તો $16\alpha$ ની કિંમત કેટલી થાય?

જો $\sum_{r=0}^{20} {}^{20+r}C_r = \frac{p}{q} {}^{40}C_{20}$ અને $GCD(p, q) = 1$ હોય,તો $p^2 - q^2 =$

$z \in \mathbb{C}$ માટે,જો $(1+z)^n = 1 + { }^n C_1 z + { }^n C_2 z^2 + \ldots + { }^n C_n z^n$ અને $\sum_{r=0}^{100} { }^{100} C_r \sin(rx) = \left(2 \cos \frac{x}{2}\right)^{100} \sin(kx)$ હોય,તો $k =$

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