If X = 4 Cot θ,Use Trigonometric Substitution to Write $\sqrt { 16 + x ^ { 2 } }$

question 29

Multiple Choice

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

• A)​4 cos θ
• B)​4 csc θ
• C)​4 cot θ
• D)​4 sec θ
• E)​4 sin θ

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