(a) In Matlab, use the function bisect in the le bisect.m to calculate roots of the following functions: f1(x) = x^2 -5 cos(x/3) in [0:5; 4] with max = 0:5x10^-10 f2(x) = sin(x) - x^2 in [0:5; 3:5] with max = 0:5 10^-7 f3(x) = 50(x)ln(x) -(pi)x^2 in [50; 100] with max = 0:5x10^-4 Determine each root with a maximum absolute error max and print the intermediate results. (b) Use Matlab's zero function to solve the equations from (a) with a high precision. Compare the results.