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In X-Y plane, the path defined by the eq...

In X-Y plane, the path defined by the equation `(1)/(x^(m))+(1)/(y^(m)) +(k)/((x+y)^(n)) =0`, is a parabola if `m=1/2,k=−1,n=0`

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The correct Answer is:
B, C, D
Required line is parallel to the vector
`(veca xx vecb)xx (vecc xx vecd)`
`[veca vec c vecd]vecb-[vecb vecc vecd]vecd`
`=4vecb-veca=-8hati`
Which is perpendicular to y-axis and z-axis.
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CENGAGE-EQUATION OF PLANE AND ITS APPLICATIONS -I -DPP 3.3
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