$\frac{x^2 - y^2}{1!} + \frac{x^4 - y^4}{2!} + \frac{x^6 - y^6}{3!} + \dots \infty = $

  • A
    $e^x - e^y$
  • B
    $e^{x^2} - e^{y^2}$
  • C
    $2 + e^{x^2} - e^{y^2}$
  • D
    $\frac{e^x - e^y}{2}$

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Similar Questions

ધારો કે $\sum_{n=0}^{\infty} \frac{n^3((2n)!) + (2n-1)(n!)}{(n!)((2n)!)} = ae + \frac{b}{e} + c$,જ્યાં $a, b, c \in \mathbb{Z}$ અને $e = \sum_{n=0}^{\infty} \frac{1}{n!}$. તો $a^2 - b + c$ ની કિંમત $................$ છે.

જો $x=1+\frac{1}{2 \times 1 !}+\frac{1}{4 \times 2 !}+\frac{1}{8 \times 3 !}+\ldots$ અને $y=1+\frac{x^{2}}{1 !}+\frac{x^{4}}{2 !}+\frac{x^{6}}{3 !}+\ldots$ હોય, તો $\log_{e} y$ ની કિંમત શોધો.

$\frac{2}{2!} + \frac{2+4}{3!} + \frac{2+4+6}{4!} + \dots$ ની કિંમત શોધો.

$\frac{1-2x}{e^x}$ માં $x^n$ નો સહગુણક શું છે?

અનંત શ્રેણી $1+\frac{1}{2!}+\frac{1 \cdot 3}{4!}+\frac{1 \cdot 3 \cdot 5}{6!}+\dots$ નો સરવાળો કેટલો થાય?

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