Consider the following equation, which represents the concentration (c, in mg/ml) of a drug in the bloodstream over time (t, in seconds). Assume we are interested in a concentration of c -2 mg/ml c3te0.4t A. Estimate the times at which the concentration is 2 mg/ml using a graphical method. Be sure to show your plot(s). Hint: There are 2 real solutions B. Use MATLAB to apply the secant method (e.g. secant.m) to find each of the solutions/roots with a tolerance of 1 x 10-3 on the absolute relative approximate error C. Calculate the first two iterations of the secant method by hand for starting values of t0 and t-2 seconds. D. Either by hand or by writing a MATLAB function, compute 3 iterations of the bisection method to find the solution/root within the starting interval of [4.5, 5.5] seconds. For each iteration, show the 3 relevant values of t and the corresponding values of f(t) E. Use the symbolic solve function to find a root of the equation. Express the result as a double (double-precision floating point value) F. Use the function fzero with suitable starting values to find both of the solutions/roots