Which of the following is the Maclaurin series of f(r) = cosh(-a)? (-1) xan (2n)!...

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Which of the following is the Maclaurin series of f(r) = cosh(-a)? Σ (-1)" xan (2n)! (a) n=1 Σ (-1)" 2n-1 (2n – 1)! (b) n=1 (c) Σ (2n)! n=0 (d) Σ (2n)! n=1 Σ (-1)" 2n (2n)! (e) n=1 Which of the following is the Maclaurin series of f(r) = cosh(-a)? Σ (-1)" xan (2n)! (a) n=1 Σ (-1)" 2n-1 (2n – 1)! (b) n=1 (c) Σ (2n)! n=0 (d) Σ (2n)! n=1 Σ (-1)" 2n (2n)! (e) n=1

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