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in a triangle ABC, if A is (1, 2) and th...

in a triangle ABC, if A is `(1, 2)` and the equations of the medians through B and c are `x+ y= 5` and `x= 4` respectively then B must be:

A

`(1,4)`

B

`(7,-2)`

C

`(4,1)`

D

`(-2,7)`

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The correct Answer is:
B
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