Consider applying the bisection method to the function f(x) = cos x over the inter-

val [0, 2.8π].

(a) Confirm that the required starting condition for the bisection method is valid

for this choice of interval and function.

(b) How many roots does ƒ have in the given interval?

(c) To which root do you expect the bisection method to converge and why? Run

the bisection m-file from class to confirm your answer.