1. Find the area of the region enclosed by y = cos(x) and y = sin(x) between r = ] and I = 2x. a. 1 - V/2 b. 1+ v2 c. 3V/2 - 1 d. 3V/2+1 e. None of the above 2. Find the volume of the solid obtained when the the region bounded by y = a' and y = 3 is rotated around the y-axis. H. b. C. T d. e. None of the above 3. Find the volume of the solid obtained when the the region bounded by y = vi and y = x is rotated around the r-axis. H. b. C. d. e. None of the above 4. Calculate the are length of the curve 3y = 4x from (3,4) to (9, 12). a. 5 b. 10 c. 15 d. 20 e. None of the above 5. Determine whether y' + 6y =0 is separable, first-order linear, both, or neither. a. separable b. first order linear c. both d. neither