a=4

2. Determine one of the roots of the given function by using the methods indicated below. f(x) = (a+10)e Cos(x) - 5eSin(x)= 0) a) Draw the diagram of f(x) by using any computer program and determine the interval [Xl, Xu] within where one of roots of f(x) takes place. b) Use Bisection method, c) Regula-Falsi method, d) Newton-Raphson method, e) Secant Method. Before applying any method, do not forget to check whether that method is appropriate or not for the given function. Find the result for an approximate percent relative error, &