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consider the points A,B,C and D with pos...

consider the points `A,B,C` and `D` with position vector `7veci-4vecj+7veck,veci-6vecj+10veck,-veci-3vecj+4veck` and `5veci-vecj+veck` respectively then `ABCD` is

A

parallelogram but not a rhombus

B

square

C

rhombus

D

rectangle

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The correct Answer is:
C
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