1.

Let L be the line joing the origin to the point of interesection of the lines represecnted by 2x^(2)-3xy-2y^(2)+10x+5y=0. If L is perpendicular to the line kx+y+3=0, then k=

Answer»

`(1)/(2)`
`(-1)/(2)`
`-1`
`(1)/(3)`

ANSWER :B


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