If X = 5 Sin θ,Use Trigonometric Substitution to Write $\sqrt { 25 - x ^ { 2 } }$

question 40

Multiple Choice

If x = 5 sin θ,use trigonometric substitution to write $\sqrt { 25 - x ^ { 2 } }$ as a trigonometric function of θ,where $- \frac { \pi } { 2 } < \theta < \frac { \pi } { 2 }$ .

• A)​5 sin θ
• B)​5 cos θ
• C)​5 tan θ
• D)​5 csc θ
• E)​5 sec θ

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