Use an Inverse Trigonometric Function to Write θ as a Function

Multiple Choice

Use an inverse trigonometric function to write θ as a function of x.​ ​ a = x
B = 6
​

A) $\theta = \arctan \frac { 6 } { x }$
B) $\theta = \arccos \frac { x } { 6 }$
C) $\theta = \operatorname { arccot } \frac { x } { 6 }$
D) $\theta = \arcsin \frac { x } { 6 }$
E) $\theta = \arctan \frac { x } { 6 }$