Write a macro in vba to approximate the value of function

Question

Problem

Write a macro in VBA to approximate the value of the function f(x)=tan(x) at some nonzero point x in radians, using a Maclaurin series through the second derivative term. Allow the point x to be input using the InputBox command.

Calculate (i) an upper bound for the remainder term R_n, (ii) the exact value of the function at x, (iii) the true error E_T and the true relative error ?_T. Output all these values to a blank Excel sheet.