Calculate the following areas: 1. Limited by the function y= -x , the x -axis and the points x = -2 and x = 2. (10 points) 2. Limited by the function y=6xe , the x-axis and the points x = 0 and x = 2. (20 points) 3. Limited by the function y= 3x -3 the x-axis and the points x = 2 and x = 4. x -3x (Tip: You will need a scientific calculator for the last step) (20 points) 4. Limited by the function y= cos3 x, the x-axis and the points x = 12 15)and x = (30 ) (Tip : you may need a scientific calculator for finding some trigonometric values) (25 points) 5. Limited by the function y= xsinx, the x-axis and the points x = (30 )and x = - (60 ). (Tip : you may need a scientific calculator for finding some trigonometric values) (25 points)