Use programming with excel only. For problem 2 only do part 2. The roots are where the two graphs cross. Hint: plot each side of the question as a seperate graph on the same chart.

Make XY plots to (i) show that sin(x)-cosh(x)+1 =0 has roots at 0 and 1.3 (see Figure 7.34) and (i) find the approximate roots of exp (-(x-2)2 cos(m)) = 4 cos(x-2). In each case, make a plot with two data series. 2