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The infinite series 1 + text x + frac text x...

This question belongs to Engineering Maths Calculus
Calculus
?

The infinite series \[1 + {\text{x}} + \frac{{{{\text{x}}^2}}}{{2!}} + \frac{{{{\text{x}}^3}}}{{3!}} + \frac{{{{\text{x}}^4}}}{{4!}} + \,...\]      corresponds to

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Correct Answer: Option B
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