A plane passing through (1, 1, 1) cuts positive direction of coordinate axes at A, B and C, then the volume of tetrahedron OABC satisfies

A plane passing through (1, 1, 1) cuts positive direction of coordinat

1.	A plane passing through (1, 1, 1) cuts positive direction of coordinate axes at A, B and C, then the volume of tetrahedron OABC satisfies
A.	\[V\le \frac{9}{2}\]
B.	\[V\ge \frac{9}{2}\]
C.	\[V=\frac{9}{2}\]
D.	None of these
Answer» C. \[V=\frac{9}{2}\]

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A plane passing through (1, 1, 1) cuts positive direction of coordinate axes at A, B and C, then the volume of tetrahedron OABC satisfies

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