Solución
v
(
t
)
=
⟨
1
−
s
e
n
t
,
1
−
c
o
s
t
⟩
,
rapidez
=
∥
v
(
t
)
∥
=
3
−
2
(
s
e
n
t
+
c
o
s
t
)
\bold{v}(t)=\lang 1−sent,1−cost\rang,\;\;\text{ rapidez } = \|\bold{v}(t)\| = \sqrt{3−2(sent+cost)}
v
(
t
)
=
⟨
1
−
se
n
t
,
1
−
cos
t
⟩
,
rapidez
=
∥
v
(
t
)
∥
=
3
−
2
(
se
n
t
+
cos
t
)