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

question 51

Multiple Choice

Use the trigonometric substitution to select the algebraic expression as a trigonometric function of $\text { } \theta \text {, where } 0 < \theta < \frac { \pi } { 2 } \text {. }$ $\sqrt { 25 x ^ { 2 } + 36 } , 5 x = 6 \tan \theta$

• A) \(5 \tan \theta\)
• B) \(25 \sec \theta\)
• C) \(25 \tan \theta\)
• D) \(- 5 \sec \theta\)
• E) \(6 \sec \theta\)

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