Under which one of the following conditions will the two planes `x + y + z = 7` and `alpha x + beta y + gamma z = 3`,

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Q 2319780610.     Under which one of the following conditions will
the two planes `x + y + z = 7` and `alpha x + beta y + gamma z = 3`,
be parallel (but not coincident)?
NDA 2008 Paper 1
A

`alpha = beta = gamma =1`

B

`alpha = beta = gamma = 3/7`

C

`alpha = beta = gamma`

D

None of these

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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