Evaluate the indefinite integral as an infinite series $$\int \frac{\sin x}{2 x} \, dx.$$ Find the first five non-zero terms of series representation centered at $x = 0.$

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Answer: $f(x) =$ $+$ $+$ $+$ $+$ $+ \cdots$

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What is the radius of convergence?
Answer: $R =$

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Note: Remember to include a constant "C".

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