Question

Evaluate \[\hat{k}\times\hat{j}\].

Options

• \[-\hat{i}\]

• \[\hat{k}\]

• \[\hat{i}\]

• \[-\hat{j}\]

Answer 1

Since \[\hat{j}\times\hat{k}=\hat{i}\], the reverse order is negative. Therefore \[\hat{k}\times\hat{j}=-\hat{i}\].