Evaluate the following integral. \[ \int \frac{2 x+1}{x^{2}+9} d x \]
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\[ \int \frac{2x+1}{x^2+9} \, dx = \int \frac{2x}{x^2+9} \, dx + \int \frac{1}{x^2+9} \, dx \] Show more…
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