The three lines whose combined equation is $y^{3} - 4 x^{2} y = 0$ forms a triangle which is

isosceles

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equilateral

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right angled

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none of these

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Solution

The correct option is D none of these
$y^{3} - 4 x^{2} y = 0 \Rightarrow y (y - 2 x) (y + 2 x) = 0$
All these three lines passes through origin $O (0, 0)$ hence these lines does not form triangle.

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