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It is desired to construct a right angle...

It is desired to construct a right angled triangle ABC `(/_C= pi/2)` in x-y plane so that its sides are parallel to coordinates axis and the medians through A and B lie on the lines `y = 3x+1` and `y = mx +2` respectively. The values of `m` for which such a triangle is possible is/are

A

`-12`

B

`3//4`

C

`4//3`

D

`1//12`

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The correct Answer is:
B
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