Reduction Formulae and Trigonometric System

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Q. Evaluate the integral ${\int }_0^{\infty }\frac{e^{-x}sinbx}{x}dx$

1. $co{t}^{-1}b$
2. $ta{n}^{-1}b$
3. $se{c}^{-1}b$
4. $cose{c}^{-1}b$

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