Find the Exact Value of the Real Number Y $$\mathrm { y } = \cot ^ { - 1 } \text { (1) }$$

Multiple Choice

Find the exact value of the real number y.
- $$\mathrm { y } = \cot ^ { - 1 } \text { (1) }$$

A) $\frac { 5 \pi } { 4 }$
B) $\frac { 7 \pi } { 4 }$
C) $\frac { 3 \pi } { 4 }$
D) $\frac { \pi } { 4 }$