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

question 13

Multiple Choice

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

• A)- 5 sec θ
• B)5 tan θ
• C)25 sec θ
• D)25 tan θ
• E)5 sec θ

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