Use a Calculator to Give the Real Number Value $$y = \cot ^ { - 1 } ( 2.5181552 )$$

Multiple Choice

Use a calculator to give the real number value. Round the answer to 7 decimal places.
- $$y = \cot ^ { - 1 } ( 2.5181552 )$$

A) $2.1658824$
B) $0.3780178$
C) $6.8341176$
D) $1.1927785$