$(1-4x)^{-4}$ के विस्तार में $13$ वाँ पद है

  • A
    ${}^{15}C_4 4^{12} x^{12}$
  • B
    $728 x^{12}$
  • C
    ${}^{15}C_3 4^{12} x^{12}$
  • D
    $1092 x^{12}$

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Similar Questions

श्रेणी $1+\frac{2}{3}\left(\frac{1}{8}\right)+\frac{2 \times 5}{3 \times 6}\left(\frac{1}{8}\right)^2+\frac{2 \times 5 \times 8}{3 \times 6 \times 9}\left(\frac{1}{8}\right)^3+\ldots$ का योग ज्ञात कीजिए।

श्रेणी $\frac{3}{4 \cdot 8}-\frac{3 \cdot 5}{4 \cdot 8 \cdot 12}+\frac{3 \cdot 5 \cdot 7}{4 \cdot 8 \cdot 12 \cdot 16}-\ldots$ का योग ज्ञात कीजिए।

$(1+x+x^2)^{-3/2}$ का $x$ की घातों में विस्तार तब मान्य है यदि

${\left( {\frac{a}{{a + x}}} \right)^{\frac{1}{2}}} + {\left( {\frac{a}{{a - x}}} \right)^{\frac{1}{2}}} = $

$1 + \frac{1}{4} + \frac{1 \times 3}{4 \times 8} + \frac{1 \times 3 \times 5}{4 \times 8 \times 12} + \dots = $

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