1. We have a piece of cardboard that is aux b" and we're going to cut out the corners and foid up the sides to form a box, as shown. Determine the height of the box (ii) that will give a maximum volume. (10 marks] IMPORTANT: note that for mu: 0 = 88 in and 13:55 in 2. Integrate: a) dx X b) (-2 sec' x -6cos x) dx f 3x- - 6 c) dx -2 x