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

  • A
    $e^x$
  • B
    $e^{-x}$
  • C
    $e$
  • D
    $e^{x^2}$

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Similar Questions

$\frac{1}{2} + \frac{1}{4} + \frac{1}{8 \times 2!} + \frac{1}{16 \times 3!} + \frac{1}{32 \times 4!} + \dots \infty = $

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

$\frac{a + bx + cx^2}{e^x}$ ના વિસ્તરણમાં,$x^n$ નો સહગુણક શું છે?

$1 + \frac{1 + 2}{2!} + \frac{1 + 2 + 3}{3!} + \frac{1 + 2 + 3 + 4}{4!} + \dots \infty = $

જો $\cosh (x-\log 3)=\sinh x$ હોય,તો $x=$

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