Two Sides of a Right Triangle ABC (C Is the Right

Multiple Choice

Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given
angle. Give exact answers with rational denominators.
-Find $\cot \mathrm { A }$ when $b = 5$ and $c = 6$ .

A) $\frac { 6 \sqrt { 11 } } { 11 }$

B) $\frac { 5 \sqrt { 11 } } { 11 }$

C) $\frac { \sqrt { 11 } } { 5 }$

D) $\frac { \sqrt { 11 } } { 6 }$