A vector \[\overset{\to }{\mathop{a}}\,=(x,y,z)\] of length \[2\sqrt{3}\] which makes equal angles with the vectors \[\overset{\to }{\mathop{b}}\,=(y,\,\,-2z,\,\,3x)\] and \[\overset{\to }{\mathop{c}}\,=(2z,\,\,3x,\,\,-y)\] is perpendicular to \[\overset{\to }{\mathop{d}}\,=(1,-1,2)\] and makes an obtuse angle with y-axis is

A vector \[\overset{\to }{\mathop{a}}\,=(x,y,z)\] of length \[2\sqrt{3

1.	A vector \[\overset{\to }{\mathop{a}}\,=(x,y,z)\] of length \[2\sqrt{3}\] which makes equal angles with the vectors \[\overset{\to }{\mathop{b}}\,=(y,\,\,-2z,\,\,3x)\] and \[\overset{\to }{\mathop{c}}\,=(2z,\,\,3x,\,\,-y)\] is perpendicular to \[\overset{\to }{\mathop{d}}\,=(1,-1,2)\] and makes an obtuse angle with y-axis is
A.	(- 2, 2, 2)
B.	\[(1,\,\,1,\,\,\sqrt{10})\]
C.	(2, - 2, - 2)
D.	None of these
Answer» D. None of these

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