On the curve

MATHEMATICS · Single correct · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

On the curve x2−xy+y2=3x^{2}-xy+y^{2}=3, which of the following points corresponds to a horizontal tangent line? (a) (0,3)(0,\sqrt{3}) (b) (2,1)(2,1) (c) (1,2)(1,2) (d) (3,0)(\sqrt{3},0)

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