The vectors are
and
.
The cross product of two vectors are orthogonal.
\Find
.
The cross product of two vectors
and
are ,that is,
.
Here,
and
.

The vector
is orthogonal to both
and
.
The vector is orthogonal to both
and
to any vector of the form
, where
is a non-zero scalar.
The vector is orthogonal to both
and
to any vector of the form
, where
is a non-zero scalar.