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

question 66

Multiple Choice

Use the trigonometric substitution to rewrite the algebraic expression as a trigonometric function of $\theta$ , where $0 < \theta < \frac { \pi } { 2 }$ . $\sqrt { 36 - 9 x ^ { 2 } } , x = 2 \cos \theta$

• A)2 cos \(\theta \)
• B)36 sin \(\theta \)
• C)- 2 sin\(\theta \)
• D)36 cos \(\theta \)
• E)6 sin \(\theta \)

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