WBJEE 2013 Math Solved Paper

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Question : 5 of 80

Marks: +1, -0

For the variable t, the locus of the points of intersection of lines x–2y = t and x+2y=

1

t

is

the straight line x = y
the circle with centre at the origin and radius 1
the ellipse with centre at the origin and one focus (
2
√5
,0)
the hyperbola with centre at the origin and one focus
√5
2
,0)

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