Use Richardson extrapolation to estimate the first derivative of the given functions. Moreover, employ
centered differences of O(h^(2)) for the initial estimates.
a) y=cosx at x=(pi )/(4) using h_(1)=(pi )/(3)&h_(2)=(pi )/(6)
b) y=lnx at x=5 using h_(1)=2&h_(2)=1
2) Use Richardson extrapolation to estimate the first derivative of the given functions. Moreover, employ centered differences of 0(h2) for the initial estimates.
a) y = cos x at x =n/4 using h1 = T/3 & h2 = T/6 b) y = ln x at x = 5 using h1 =2& h2 =1