If X = 4 Cot $\theta$ , Use Trigonometric Substitution to Write

Multiple Choice

If x = 4 cot $\theta$ , use trigonometric substitution to write $\sqrt { 16 + x ^ { 2 } }$ as a trigonometric function of $\theta$ , where 0 < $\theta$ < $\pi$ .

A) 4 cos $\theta$
B) 4 csc $\theta$
C) 4 cot $\theta$
D) 4 sec $\theta$
E) 4 sin $\theta$