Use the Trigonometric Substitution to Select the Algebraic Expression as a Trigonomet-

question 44

Multiple Choice

Use the trigonometric substitution to select the algebraic expression as a trigonomet- $$\text { ric function of } \theta \text {, where } 0 < \theta < \frac { \pi } { 2 } \text {. }$$ $$\sqrt { 16 x ^ { 2 } + 25 } , 4 x = 5 \tan \theta$$

• A) \(5 \sec \theta\)
• B) \(16 \tan \theta\)
• C) \(16 \sec \theta\)
• D) \(- 4 \sec \theta\)
• E) \(4 \tan \theta\)

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