જો $\frac{1}{n+1} {}^{n}C_{n} + \frac{1}{n} {}^{n}C_{n-1} + \dots + \frac{1}{2} {}^{n}C_{1} + {}^{n}C_{0} = \frac{1023}{10}$ હોય,તો $n$ ની કિંમત શોધો.

  • A
    $6$
  • B
    $9$
  • C
    $8$
  • D
    $7$

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Similar Questions

જો $(\frac{1}{^{15}C_{0}}+\frac{1}{^{15}C_{1}})(\frac{1}{^{15}C_{1}}+\frac{1}{^{15}C_{2}})...(\frac{1}{^{15}C_{12}}+\frac{1}{^{15}C_{13}}) = \frac{a^{13}}{^{14}C_{0} \cdot ^{14}C_{1} \cdot ... \cdot ^{14}C_{12}}$ હોય, તો $30a$ ની કિંમત શોધો:

જો $C_r = ^{100}C_r$ હોય,તો $1 \cdot C_0^2 - 2 \cdot C_1^2 + 3 \cdot C_2^2 - 4 \cdot C_3^2 + \dots + 101 \cdot C_{100}^2$ ની કિંમત શોધો.

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

ધારો કે $S = \frac{1}{25!} + \frac{1}{3!23!} + \frac{1}{5!21!} + \dots$ $13$ પદો સુધી છે. જો $13S = \frac{2^{k}}{n!}$ જ્યાં $k \in N$ હોય, તો $n + k$ ની કિંમત શોધો.

જો $(1 + x + x^2)^n = a_0 + a_1x + a_2x^2 + \dots + a_{2n}x^{2n}$ હોય,તો $a_0 + a_3 + a_6 + \dots =$

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