The point on the curve \( 2 y^{4}+3 x^{2}-9=0 \) where the tangent is vertical is....

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The point on the curve \( 2 y^{4}+3 x^{2}-9=0 \) where the
\( \mathrm{P} \)
tangent is vertical is
W
(1) \( \quad(-3,0) \)
(2) \( \left(0,\left(\frac{9}{2}\right)^{1 / 4}\right) \)
(3) \( \left(0,-\left(\frac{9}{2}\right)^{1 / 4}\right) \)
(4) None of these


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