18) [5 pts) Use 'subplot' to plot In(x), log(x), e' on a single figure by dividing the figure into sub plots. Interval x 2 20:2 19) [10 pts) Create a figure containing three subplots. Create two subplots for sin(x) and cos(x) across the upper half of the figure and a third subplot which includes both sin(x) and cos(x) that spans the lower half of the figure. Add titles to each subplot. Add a legend to the third subplot