Let Mclaurin series of some f(x) be given recursively, where an denote – McqOptions

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1.	Let Mclaurin series of some f(x) be given recursively, where a_n denotes the coefficient of xⁿ in the expansion. Also given a_n = a_n-1 / n and a₀ = 1, which of the following functions could be f(x)?
A.	e<sup>x</sup>
B.	e<sup>2x</sup>
C.	c + e<sup>x</sup>
D.	No closed form exists
Answer» B. e<sup>2x</sup>

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