Example 9. (a) Find the Maclaurin polynomial of degree n = 5 for .

First find the derivatives of f(x).

Second, evaluate the derivatives of f(x) at x = 0, and obtain a sequence of constants .

Third, substitute the constants in Maclaurin's formula.

Example 9. (b) Find the Maclaurin polynomial of degree n = 11.

(c) John H. Mathews, 1998