A) 1
B) 0
C) 3
D) 4
Correct Answer: B
Solution :
\[\hat{i}\times (\hat{j}\times \hat{k})+\hat{j}\times (\hat{k}\times \hat{i})+\hat{k}\times (\hat{i}\times \hat{j})\] \[=\hat{i}\times \hat{i}+\hat{j}\times \hat{j}+\hat{k}\times \hat{k}\] \[=0+0+0=0\] \[[\because \hat{i}\times \hat{i}=\hat{j}\times \hat{j}=\hat{k}\times \hat{k}=0]\]You need to login to perform this action.
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