In the Previous Problem, Assume That $f ( x ) = \sin ( \pi x )$

Multiple Choice

In the previous problem, assume that $f ( x ) = \sin ( \pi x )$ . The solution for $U ( x , s )$ is

A) $U = \sinh ( s x ) + \frac { s } { s ^ { 2 } + \pi ^ { 2 } } \sin ( \pi x )$
B) $U = \cosh ( s x ) + \frac { s } { s ^ { 2 } - \pi ^ { 2 } } \sin ( \pi x )$
C) $U = \frac { 1 } { s ^ { 2 } - \pi ^ { 2 } } \sin ( \pi x )$
D) $U = \frac { s } { s ^ { 2 } + \pi ^ { 2 } } \sin ( \pi x )$
E) $U = \frac { 1 } { s ^ { 2 } + \pi ^ { 2 } } \sin ( \pi x )$