Question

12. If(-1,2), (2, -1) and (3,1) are any three vertices of a parallelogram, then
(a) a=2, b=0
(b) a = -2, b = 0
(c) a = -2, b = 6
(d) a = 6, b = 2

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Answer 1

Answer:

b). a = -2 and b = 0

Step-by-step explanation:

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