AREAS Sketch the region enclosed by the given curves. Find the area of the region. 1. y= x+1,y =9-x2 ,x =-1,x =2 2. y = x , y = Vx 3. y = 4x2 , y = x2 + 3 4. y = Ixl ,y = x2 - 2 5. y = x , y= x2 6. y= x + 1,y = (x -1)2,x = -1,x = 2 Answers : 1) 7 2) - 3) 4 4) - 5) - 6) VOLUMES Find the volume of the solid obtained by rotating the region bounded by the given curves about x-axis . 1. y = x2, yz = x 2. y= x3, y = x2 3. y2 = x, x = 2y 4. y = x, y = Vx Answers : 1) 3X1 2) 35 BI1 4) - 27 3) 3