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A vector veca=(x,y,z) makes an obtuse an...

A vector `veca=(x,y,z)` makes an obtuse angle with F-axis, and make equal angles with `vecb=(y,-2z, 3x)` and `vecc=(2z, 3x,-y)` and `veca` is perpendicular to `vecd = (1,-1,2)` if `|veca|=2sqrt(3)` then vector `veca` is:

A

(1,2,3)

B

(2,-2,-2)

C

(-1,2,4)

D

None of these

Text Solution

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The correct Answer is:
B
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