Math, asked by MiniDoraemon, 1 month ago

Solve previous year Question of iit jee

Chapter :- sequence and series

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Answered by rk8810123

1

Answer:

this question will be solved by Expansion of e^-x

option b is correct answer

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Answered by ridhya77677

2

Answer:

The sum of the series =

${e}^{ - 1}$

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