The first question: (26 signs) d'y a) if y = tant, x = sint, find dy y = x * + 1 b) Find where dx is the second question: (26 signs) lim (3x + 2x-1) 5x + 3x-7 a) Find b) Find the volume of the body resulting from a rotation bounded between curves 3 = y = 0, y = x + 1, x = 1, x complete rotation around the y axis Find V4-x² Scosh x dx + f sinh? X dx si (+rn

: )26 ( d'y ( y = tant ,x = sint dy y = x*+1 ( dx : )26 ( lim ( 3x+2x-1) 5x +3x-7 ( ( 3 = y = 0 , y = x + 1, x =1 ,x y : )26 ( dx ( V4-x Scosh x dx + f sinh? x dx si (+