જો $y = \frac{3}{4} + \frac{3 \cdot 5}{4 \cdot 8} + \frac{3 \cdot 5 \cdot 7}{4 \cdot 8 \cdot 12} + \dots \infty$ 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

જો $\alpha = \frac{5}{2! \times 3} + \frac{5 \times 7}{3! \times 3^2} + \frac{5 \times 7 \times 9}{4! \times 3^3} + \ldots$ હોય,તો $\alpha^2 + 4\alpha =$

$\frac{1}{8} - \frac{7}{8 \times 12} + \frac{7 \times 10}{8 \times 12 \times 16} - \ldots =$

જો $x = \frac{1}{5} + \frac{1 \cdot 3}{5 \cdot 10} + \frac{1 \cdot 3 \cdot 5}{5 \cdot 10 \cdot 15} + \dots \infty$ હોય,તો $3x^2 + 6x$ ની કિંમત શોધો.

$1+\frac{2}{4}+\frac{2 \cdot 5}{4 \cdot 8}+\frac{2 \cdot 5 \cdot 8}{4 \cdot 8 \cdot 12}+\frac{2 \cdot 5 \cdot 8 \cdot 11}{4 \cdot 8 \cdot 12 \cdot 16}+\ldots \ldots$ ની કિંમત શોધો:

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

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