2. For each of the following functions determine d' y in terms of t da2 1. x = sint, y = cost 2. x = 3t2 + 1, y = 13 - 212 3. r= - 1 2 4 2, y = sin(t + 1) 4. c= et,y=t+t+1 5. x = 3t2 + 4t, y = sin 2t