Determine Whether the Set of Vectors Is Orthogonal A) $\mathrm { No }$

Multiple Choice

Determine whether the set of vectors is orthogonal.
- $$\left[ \begin{array} { l } - 20 \\- 40 \\- 20\end{array} \right] , \left[ \begin{array} { r } 20 \\0 \\- 20\end{array} \right] , \left[ \begin{array} { l } - 20 \\- 20 \\- 20\end{array} \right]$$

A) $\mathrm { No }$
B) Yes