Solve the Equation for Exact Solutions $\arctan x = \operatorname { arccot } \frac { 8 } { 11 }$

Multiple Choice

Solve the equation for exact solutions.
- $\arctan x = \operatorname { arccot } \frac { 8 } { 11 }$

A) $\left\{ \frac { 8 } { 11 } \right\}$
B) $\varnothing$
C) $\{ 0 \}$
D) $\left\{ \frac { 11 } { 8 } \right\}$