જો $y = \frac{3}{4} + \frac{3 \times 5}{4 \times 8} + \frac{3 \times 5 \times 7}{4 \times 8 \times 12} + \ldots$ અનંત સુધી હોય,તો

  • A
    $y^2 - 2y + 5 = 0$
  • B
    $y^2 + 2y - 7 = 0$
  • C
    $y^2 - 3y + 4 = 0$
  • D
    $y^2 + 4y - 6 = 0$

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Similar Questions

વિધાન $(A) : 1+\frac{2}{3} \cdot \frac{1}{2}+\frac{2 \cdot 5}{3 \cdot 6} \cdot \frac{1}{4}+\frac{2 \cdot 5 \cdot 8}{3 \cdot 6 \cdot 9} \cdot \frac{1}{8}+\ldots \infty = \sqrt[3]{4}$
કારણ $(R) : |x| < 1, (1-x)^{-n} = 1+nx+\frac{n(n+1)}{1 \cdot 2} x^2+\frac{n(n+1)(n+2)}{1 \cdot 2 \cdot 3} x^3+\ldots$ સાચો જવાબ છે

$\frac{1+4x-3x^2}{(1+3x)^3}$ ના પાવર શ્રેણી વિસ્તરણમાં $x^3$ નો સહગુણક શું છે?

જો $|x| < 1$ હોય,તો $1 + n\left( \frac{2x}{1 + x} \right) + \frac{n(n + 1)}{2!}\left( \frac{2x}{1 + x} \right)^2 + \dots \infty$ ની કિંમત શું થશે?

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

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

Difficult
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