Vectors
are
described
by
their
____________________
.
To
____________________
a
vector
means
to
find
its
components
;
a
vector's
components
are
the
lengths
of
the
vector
along
____________________
____________________
.
Vector
components
depend
on
length
and
____________________
.
The
sine
and
the
cosine
of
an
angle
e
are
defined
in
terms
of
a
____________________
____________________
.
The
relations
for
finding
the
sides
of
a
right
triangle
in
terms
of
its
____________________
and
____________________
are
used
so
often
that
we
have
summarized
them
in
Table
4
.
1
for
____________________
____________________
.
