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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) a parabola if `m = (1)/(2), k =- 1, n =0` (b) a hyperbola if `m =1, k =- 1, n=0` (c) a pair of lines if `m = k = n =1` (d) a pair of lines if `m = k =- 1, n =1`

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