PART B ONLY USE VBA on excel

PROBLEMS 4.1 The following infinite series can be used to approximat e e ex = 1 + x +-+-+ -+- 2 3! (a) Prove that this Maclaurin series expansion is a special case of .7)] with x-0 and h = x. (b) Use the Taylor series to estimatef(x) = e" at x = 1 for x,-0.2. Employ the zero-, first-, second-, and third-order the Taylor series expansion [(Eq. (4 versions and compute the le, for each case