If two vectors are orthogonal to each other, then their dot product is equal to zero.
\Find a vector orthogonal to the vector
.
Let the vectors are
and
.
The dot product of
and
is
.
Since the vectors
and
are orthogonal to each other, their dot product
.

Solve for
.

Substitute a value for
and solve for
.
A value of
that is divisible by
will produce an integer value for
.
Let
, then
.
Therefore, the vector orthogonal to
is
.
The vector orthogonal to
is
.