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Two vertices of a triangle are (5,-1) an...

Two vertices of a triangle are `(5,-1)` and `(-2,3)` If the orthocentre of the triangle is the origin, find the coordinates of the third point.

A

(4,7)

B

`(-4,-7)`

C

`(-4,7)`

D

none of these

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The correct Answer is:
B
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