If a vector \[2\hat{i}+3\hat{j}+8\hat{k}\]is perpendicular to the vect – McqOptions

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1.	If a vector \[2\hat{i}+3\hat{j}+8\hat{k}\]is perpendicular to the vector \[4\hat{j}-4\hat{i}+\alpha \hat{k}\]. Then the value of \[\alpha \] is [CBSE PMT 2005]
A.	?1
B.	\[\frac{1}{2}\]
C.	\[-\frac{1}{2}\]
D.	1
Answer» D. 1

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