UPSC NDA II 2011 Mathematics Paper

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Question : 50 of 120

Marks: +1, -0

If the vectors −

∧

i

−2x

∧

j

−3y

∧

k

and

∧

i

−3x

∧

j

−2y

∧

k

are orthogonal to each other, then what is the locus of the point (x,y) ?

a straight line
an ellipse
a parabola
a circle

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