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

  • A
    $3^n$
  • B
    $3^{n-1}$
  • C
    $3^{n-2}$
  • D
    $3$

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Similar Questions

$\binom{n}{n-r} + \binom{n}{r+1}$,જ્યારે $0 \le r \le n-1$ હોય,ત્યારે તે કોના બરાબર છે?

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

શ્રેણી $\frac{C_0}{2} - \frac{C_1}{3} + \frac{C_2}{4} - \frac{C_3}{5} + \dots$ ના $(n + 1)$ પદોનો સરવાળો શું થાય?

Difficult
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જો $(1+x)^n=C_0+C_1 x+C_2 x^2+\ldots+C_n x^n$ હોય,તો $C_0+2 C_1+3 C_2+\ldots+(n+1) C_n$ ની કિંમત શોધો.

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

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