Question: In Problems 1-4, use the methods of Example 5 to find power series in x for each function f? 1. f(x) = e-x ( 1

In Problems 1-4, use the methods of Example 5 to find power series in x for each function f?
1. f(x) = e-x ( 1 / 1 - x
2. f(x) = ex tan-1 x
3. f(x) = tan - 1 x / ex
4. f(x) = ex / 1 + 1n (1 + x)

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