Locate the first positive root of (x) = sin x + cos(1 + x2) 1 Where

Locate the first positive root of
ƒ(x) = sin x + cos(1 + x2) – 1
Where x is in radians, use four iterations of the secant method with initial guesses of
(a) xi-1 = 1.0 and xi = 3.0;
(b) xi-l = 1.5 and xi = 2.5, and
(c) xi-l = 1.5 and xi = 2.5 to locate the root.
(d) Using the graphical method to explain your results.