Use a Calculator to Give the Real Number Value $\mathrm { y } = \tan ^ { - 1 } ( 0.5774 )$

Multiple Choice

Use a calculator to give the real number value. Round the answer to 7 decimal places.
- $\mathrm { y } = \tan ^ { - 1 } ( 0.5774 )$

A) $1.0476200$
B) $0.4714286$
C) $0.5587302$
D) $0.5236361$