In: Advanced Math
Q11: Use the Lagrange interpolating polynomial of degree three
or less and four-digit chopping arithmetic to approximate cos 0.750
using the following values. Find an error bound for the
approximation.
cos 0.698 = 0.7661 ,cos 0.733 = 0.7432 cos 0.768 = 0.7193 cos 0.803
= 0.6946.