1.

If vectors \[\vec{A}=2\mathbf{i}+3\mathbf{j}+4\mathbf{k}\], \[\vec{B}=\mathbf{i}+\mathbf{j}+5\mathbf{k}\], and \[\vec{C}\] form a left handed system, then \[\vec{C}\] is                      [Roorkee 1999]

A.             11i ? 6j ? k
B.             ? 11i + 6j + k
C.             11i ? 6j + k
D.             ? 11i + 6j ? k
Answer» C.             11i ? 6j + k


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