$(1-2x)^{1/2}(1+3x)^{-1/3}$ ના વિસ્તરણમાં $x^3$ નો સહગુણક શોધો.

  • A
    $-\frac{20}{3}$
  • B
    $\frac{20}{3}$
  • C
    $\frac{17}{3}$
  • D
    $-\frac{17}{3}$

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જો $|x| < \frac{1}{2}$ હોય,તો $\frac{1+2x}{(1-2x)^2}$ ના વિસ્તરણમાં $x^r$ નો સહગુણક શું થાય?

જો $x = \frac{1}{5} + \frac{1 \times 3}{5 \times 10} + \frac{1 \times 3 \times 5}{5 \times 10 \times 15} + \ldots$ હોય,તો $3x^2 + 6x =$

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

$\frac{1}{(2 + x)^4} = $

શ્રેણી $\frac{3}{10}+\frac{3 \cdot 7}{10 \cdot 15}+\frac{3 \cdot 7 \cdot 11}{10 \cdot 15 \cdot 20}+\ldots$ અનંત પદો સુધીનો સરવાળો કેટલો થાય?

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