$$f ( 2 x + 5 ) = \tan \left( \frac { \pi } { 2 } x \right)$$ For the function $f$ given by the equality, what is the value $f ^ { -1 } ( 1 )$? A) $\frac { \pi } { 2 }$ B) $\frac { \pi } { 4 }$ C) $\pi$ D) $2 \pi$ E) $3 \pi$
$$f ( 2 x + 5 ) = \tan \left( \frac { \pi } { 2 } x \right)$$
For the function $f$ given by the equality, what is the value $f ^ { -1 } ( 1 )$?
A) $\frac { \pi } { 2 }$\\
B) $\frac { \pi } { 4 }$\\
C) $\pi$\\
D) $2 \pi$\\
E) $3 \pi$