If X = 2 Tan $\theta$ , Use Trigonometric Substitution to Write

question 56

Multiple Choice

If x = 2 tan $\theta$ , use trigonometric substitution to write $\sqrt { 4 + x ^ { 2 } }$ as a trigonometric function of $\theta$ , where $- \frac { \pi } { 2 } < \theta < \frac { \pi } { 2 }$ .

• A) 2 csc \(\theta \)
• B) 2 sec \(\theta \)
• C) 2 cos \(\theta \)
• D) 2 tan \(\theta \)
• E) 2 sin \(\theta \)

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