Answer the question 15

14. Find all the roots of the function sinr) x=0, in the interval [-10,10] for tol- 10-7. [This function is special enough to have a name. It is called the sinc function.] 15. For x> 0 consider the equation x+lnx =0. It is a reformulation of the equation of Example 3.4. (a) Show analytically that there is exactly one root. 0