USING C++ !! Use lagrange interpolation to find the second order derivative using a set of n+1 regularly spaced nodes computed by the following equation x[k] = XXXXXXXXXXk-1)/N on the interval [-5,5]....

USING C++ !!

Use lagrange interpolation to find the second order derivative using a set of n+1 regularly spaced nodes computed by the following equation x[k] = -1 + 2(k-1)/N on the interval [-5,5]. h = 5/N+1.

Test the function using f(x) = sqrt( 1+x^2) and N+1 = 53.