Q .     Let `P, Q, R`, `S` be the points on the plane with position vectors `-2hat(i)-hat(j), 4hat(i), 3hat(i) + 3hat(j) and -3hat(i) + 2hat(j)`. Then the quadrilateral `PQRS` must be a

JEE 2010 Mains
A

parallelogram, which is neither a rhombus nor a rectangle

B

square

C

rectangle, but not a square

D

rhombus, but not a square

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