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given the curve x(t)=t^2+3 and y(t)=2t^3-3t^2 find the following: a.) find the derivative of the curve...

given the curve x(t)=t^2+3 and y(t)=2t^3-3t^2 find the following:
a.) find the derivative of the curve at t=1
b.) dind the concavity of the curve
c.) graph the curve from t=0 to t=2
d.) find the area if the curve on the interval 0<=t<=2

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