જો $(1+x)^n = \sum_{r=0}^n C_r x^r$ હોય,તો $C_0 + (C_0 + C_1) + (C_0 + C_1 + C_2) + \ldots + (C_0 + C_1 + C_2 + \ldots + C_n)$ ની કિંમત શોધો.

  • A
    $n 2^{n-1}$
  • B
    $2^n + n$
  • C
    $(n+2) 2^n$
  • D
    $(n+2) 2^{n-1}$

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$\binom{30}{0}\binom{30}{10} - \binom{30}{1}\binom{30}{11} + \binom{30}{2}\binom{30}{12} - ....... + \binom{30}{20}\binom{30}{30}$ નું મૂલ્ય શું છે?

${ }^{10} C_{1}+{ }^{10} C_{2}+{ }^{10} C_{3}+\ldots+{ }^{10} C_{9}$ ની કિંમત શું છે?

જો $(1 + x)^n = C_0 + C_1x + C_2x^2 + .......... + C_nx^n$ હોય,તો $C_0^2 + C_1^2 + C_2^2 + C_3^2 + ...... + C_n^2$ =

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જો $(1+x+x^2)^n = a_0 + a_1 x + a_2 x^2 + \ldots + a_{2n} x^{2n}$ હોય,તો $a_0 + a_2 + a_4 + \ldots + a_{2n} =$

જો $C_{0} + 5 \cdot C_{1} + 9 \cdot C_{2} + \ldots + (101) \cdot C_{25} = 2^{25} \cdot k$ હોય,તો $k$ ની કિંમત શોધો:

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