Write the Following as an Algebraic Expression in U, U $\tan \left(\cos ^{-1} \frac{\mathrm{u}}{3}\right)$

question 386

Multiple Choice

Write the following as an algebraic expression in u, u > 0.
- $\tan \left(\cos ^{-1} \frac{\mathrm{u}}{3}\right)$

• A) \(\frac{\sqrt{u^{2}-9}}{u}\)
• B) \(\frac { u \sqrt { 9 - u ^ { 2 } } } { 9 - u ^ { 2 } }\)
• C) \(u ^ { 2 } \sqrt { 9 }\)
• D) \(\frac { \sqrt { 9 - u ^ { 2 } } } { u }\)

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