Question

Write the value of \[\hat{ i }  \times \left(\hat{  j }  \times \hat{ k }  \right) .\]

 

Answer 1

\[\hat{ i }  \times \left(\hat{  j }  \times \hat{ k }  \right)\]
\[ = \hat{ i }  \times \hat{ i }  \]
\[ = \vec{0}\]