Question: In problems, use the method of completing the square, along with a trigonometric substitution if needed, to evaluate each integral. (a) dx/(x2 + 2x

In problems, use the method of completing the square, along with a trigonometric substitution if needed, to evaluate each integral.
(a) ∫ dx/√(x2 + 2x + 5)
(b) ∫ dx/√(x2 + 4x + 5)

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