Evaluate the Integral Using an Appropriate Trigonometric Substitution $$\int _ { 1 } ^ { 3 } \frac { \sqrt { x ^ { 2 } - 1 } } { x ^ { 4 } } d x$$

question 8

Short Answer

Evaluate the integral using an appropriate trigonometric substitution.
$$\int _ { 1 } ^ { 3 } \frac { \sqrt { x ^ { 2 } - 1 } } { x ^ { 4 } } d x$$

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