The plane x - 2y + 7z + 21=0...

The plane `x - 2y + 7z + 21=0`

A

contains the line `(x+1)/(-3) = (y-3)/(2) = (z+2)/(1) `

B

contains the point `(0,7,-1)`

C

is perpendicular to the line `x/1 = (y)/(-2) = z/7`

D

is parallel to the plane `x - 2y +7z =0`

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The correct Answer is:

A, B, C, D

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