The point(s) on the curve \( y^{3}+3 x^{2}=12 y \), where the tangent is vertical, is (are)
(a) ...
The point(s) on the curve \( y^{3}+3 x^{2}=12 y \), where the tangent is vertical, is (are)
(a) \( \left(\pm \frac{4}{\sqrt{3}},-2\right) \)
(b) \( \left(\pm \sqrt{\frac{11}{3}}, 0\right) \)
(c) \( (0,0) \)
(d) \( \left(\pm \frac{4}{\sqrt{3}}, 2\right) \)
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