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5. For the region bounded by the curves y (r-1) and y +1: (a) (2 marks) Sketch the region. Label important. features, such as

D.) choose one of the inegrals in part b and part c and evaluate to find the volume. justify why you chose the integral over the other ??

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y (x- and 2 C3.4) R (++ 2 (o) 2 da Vol dn -2 = TT 4 (3.4) 7+ T P2 2. 2. ()(1-J ro - -I - (y- +JJ Vy - 2P,h, dy TT 4 c+2) (Jy -Y+ 2) dy (Y+2) (2Jydy f2T C using Pant 3 2. da 2 +3C 2.) - 2 Jx+6x+9) 2 2 L +4 C+4 r - - 4 3 TT 3 3 3

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