Question: Evaluate the following integral using trigonometric substitution. dx 1x > x 14x2 - 49 .. . What substitution will be the most helpful for evaluating

Evaluate the following integral using trigonometric substitution. dx 1x > x 14x2 - 49 .. . What substitution will be the most helpful for evaluating this integral? 7 O A. X= - sec 0 7 O B. x= - tan 0 7 O C. x = ~ sin 0 Rewrite the given integral using this substitution. dx x 14X2 - 49 10de (Simplify your answers. Type exact answers.) Evaluate the integral. dx x2 4X2 - 49 5 441

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