Q1.) at x=2 a) Find the area of the region enclosed by the tangent line of the function f(x) = 6e9x and the coordinate axis. please take x value as radians) b) Find the largest volume of a rectangular box with no top made by cutting little squares out of

Q1.) at x=2 a) Find the area of the region enclosed by the tangent line of the function f(x) = 6e9x and the coordinate axis. please take x value as radians) b) Find the largest volume of a rectangular box with no top made by cutting little squares out of the four corners of an 6m x 15m rectangular sheet of metal, and folding up resulting aps.( please show by drawing figure.) c) Compute the volume of the solid obtained by revolving the graph of the function f(x) = 6x5 on the interval [-15,15].(please rotate it around the y-axis.)