Find the value of λ such that the vectors \(3\hat i - \hat j + 4\ha – McqOptions

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1.	Find the value of λ such that the vectors \(3\hat i - \hat j + 4\hat k\) and \(- \lambda \hat i + 3\hat j + 3\hat k\) are perpendicular ?
A.	2
B.	- 2
C.	3
D.	- 3
Answer» D. - 3

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