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If u, v and w are non-coplanar vectors and p, q are real numbers, then the equality [3u pv pw]-[pv w qu]-[2w qv pu]=0 holds for

A

exactly two values of (p,q)

B

more than two but not all values of (p,q)

C

all values of (p,q)

D

exactly one value of (p,q)

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The correct Answer is:
D
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