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The Improper Integral 122xx21dx\int _ { 1 } ^ { 2 } \frac { 2 x } { \sqrt { x ^ { 2 } - 1 } } d x

Question 72

Multiple Choice

The improper integral 122xx21dx\int _ { 1 } ^ { 2 } \frac { 2 x } { \sqrt { x ^ { 2 } - 1 } } d x is


A) - \infty
B) 232 \sqrt { 3 }
C) 22
D) 1
E) \infty

Correct Answer:

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