1.

Let veca,vecb,vecc be the three vectors such thatveca.(vecb+vecc)+vecb.(vecc+veca)+vecc.(veca+vecb)=0 and |veca|=1,|vecb|=4,|vecc|=8, then |veca+vecb+vecc| equals :

Answer»

13
81
9
5

Answer :B


Discussion

No Comment Found

Related InterviewSolutions