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A rod of length 2 units whose one end is...

A rod of length 2 units whose one end is `(1, 0, -1)` and other end touches the plane `x - 2y + 2z + 4=0,` then

A

the rod sweeps the figure whose volume is `pi` cubic units

B

the area of the regio which the rod traces on the plnae is `2pi`

C

the length of projection of the rod on the plane is `sqrt3` units

D

the centre of the region which the rod traces on the plane is `((2)/(3), (2)/(3),(-5)/(3))`

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The correct Answer is:
A, C, D
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