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Trigonometry

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Moderate

Inverse Function, Sine, Tangent, Cosine, Arccosine

TRIG-8H5KNJ

Find an algebraic expression equivalent to the following:

$$ \tan { \left( \cos ^{ -1 }{ \left( \cfrac { x }{ 3 } \right) } \right) }$$

A

$ \cfrac { \sqrt { 9-{ x }^{ 2 } } }{ x }$

B

$ \cfrac { 9-{ x }^{ 2 } }{ x } $

C

$ \cfrac { \sqrt { 9-{ x }^{ 2 } } }{ 3 }$

D

$ \cfrac { \sqrt { 3-{ x }^{ 2 } } }{ x }$