$\hat{i} . (\hat{j} \times \hat{k})+\hat{j} . (\hat{k} \times \hat{i})+\hat{k} . (\hat{i} \times \hat{j})$ is equal to

1 0 3 -3

3

$\hat{i} . (\hat{j} \times \hat{k})+\hat{j} . (\hat{k} \times \hat{i})+\hat{k} . (\hat{i} \times \hat{j})$ $=\hat{i} . (\hat{i})+\hat{j} . (\hat{j})+\hat{k} .(\hat{k})$ = 1 + 1 + 1 = 3  Option: C