Let f(x) = ex sinh(x) / x, let y(n) denote the nth derivative of f(x) – McqOptions

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1.	Let f(x) = e^x sinh(x) / x, let y⁽ⁿ⁾ denote the n^th derivative of f(x) at x = 0 then the expression for y⁽ⁿ⁾ is given by
A.	( sum_{i=0}^n frac{c_{2i}^n}{2i+1} )
B.	( sum_{i=0}^n frac{1}{2i+1} )
C.	1
D.	Has no general form
Answer» B. ( sum_{i=0}^n frac{1}{2i+1} )

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