1.

The vertex of a equilateral triangle is at (2,-1) and the side opposite to it has the equation x+y=2 then orthocenre of the triangle if

Answer»

`(1/3,1/3)`
`((SQRT(2))/3,(sqrt(2))/3)`
`(7/2,(-2)/3)`
`(1,1)`

ANSWER :C


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