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If the points A(2, p, 1),B(1, 2, q), C(3...

If the points `A(2, p, 1),B(1, 2, q), C(3, 2, 1)` are collinear, then

A

`p=1, q=2`

B

`p=2, q=1`

C

`p=-1, q=-2`

D

`p=-2, q=-1`

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The correct Answer is:
B
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  3. If the points A(2, p, 1),B(1, 2, q), C(3, 2, 1) are collinear, then

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