1.

Two sides of a triangle are y=m_(1)x and y=m_(2)x,m_(1),m_(2) are the roots of the equation x^(2)+ax-1=0. For all values of a the orthocentre of the triangle lies at

Answer»

(1,1)
(2,2)
`(3/2,3/2)`
(0,0)

ANSWER :D


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