Question
A zero vector has:
- Any direction
- No direction
- Many direction
- None of these
Solution:

Zero vector, is a vector of length 0, and thus has all components equal to zero. It is the additive identity of the additive group of vectors.
Thus, it has zero magnitude and arbitrary direction.
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$[3,5]$
$[-1,1]$
$\Big[-\sqrt5,-\sqrt3\Big]\cup\Big[\sqrt3,\sqrt5\Big]$
$\Big[-\sqrt5,-\sqrt3\Big]\cap\Big[\sqrt3,\sqrt5\Big]$
Let T be the set of all triangles in the Euclidean plane and let a relation R on T be defined as aRb, if a is congruent to
$\text{b}\ \forall\ \text{a},\ \text{b}\in\text{T}.$ Then, R is:$\left|\begin{array}{rrr}3 & -1 & -2 \\ 0 & 0 & -1 \\ 3 & -5 & 0\end{array}\right|$