Solución
⟨
u
,
v
⟩
=
⟨
π
c
o
s
(
π
x
)
s
e
n
(
2
π
y
)
,
2
π
s
e
n
(
π
x
)
c
o
s
(
2
π
y
)
⟩
\lang u, v \rang = \lang \pi cos(\pi x)sen(2\pi y), 2\pi sen(\pi x)cos(2\pi y)\rang
⟨
u
,
v
⟩
=
⟨
π
cos
(
π
x
)
se
n
(
2
π
y
)
,
2
π
se
n
(
π
x
)
cos
(
2
π
y
)⟩