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Question : 82 of 120
Marks:
+1,
-0
Solution:
Using the definition of triple cross product:
→
×(×)=(.) −(.)=−a ×(×)=(.) −(.)=−a ×(×)=(.) −(.)=−a ∴×(×)+×(×) +×(×) =(−a)+(−a)+(−a) =3−(a+a+a) =3− =2
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