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1.Find the equation of the tangent to x=t^2-t, y=t^2+t+1, at the point t=1 2.Find the length...

1.Find the equation of the tangent to x=t^2-t, y=t^2+t+1, at the point t=1

2.Find the length of the curve x=t*sint, y=t*cost, 0≤t≤1

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