a curve C is defined by the parametric equations x=t^{2} and y=t^{3}-3t show that C has two tangents at the point (3,0) and find their equations please help with step by step ways to work it out!
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Hint: use $\displaystyle \frac{dy}{dx}=\frac{dy}{dt}\cdot\frac{dt}{dx}$
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