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

  • A
    $2 + \frac{{3{x^2}}}{{4{a^2}}} + \dots$
  • B
    $1 + \frac{{3{x^2}}}{{8{a^2}}} + \dots$
  • C
    $2 + \frac{x}{a} + \frac{{3{x^2}}}{{4{a^2}}} + \dots$
  • D
    $2 - \frac{x}{a} + \frac{{3{x^2}}}{{4{a^2}}} + \dots$

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Similar Questions

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।

जब $|x|>3$ हो,तब $x^{3/2}(3+x)^{1/2}$ के विस्तार में $\frac{1}{x^n}$ का गुणांक क्या है?

$(1 - x)^{3/2}$ के विस्तार में पहले चार पद क्या हैं?

यदि $x=\frac{2 \cdot 5}{3 \cdot 6}-\frac{2 \cdot 5 \cdot 8}{3 \cdot 6 \cdot 9}\left(\frac{2}{5}\right)+\frac{2 \cdot 5 \cdot 8 \cdot 11}{3 \cdot 6 \cdot 9 \cdot 12}\left(\frac{2}{5}\right)^2-\ldots \infty$ है,तो $7^2(12 x+55)^3=$

यदि $y = \frac{3}{4} + \frac{3 \cdot 5}{4 \cdot 8} + \frac{3 \cdot 5 \cdot 7}{4 \cdot 8 \cdot 12} + \dots \infty$ है,तो

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