Use a CAS to find the first four nonzero terms in the Maclaurin series for each of

Question:

Use a CAS to find the first four nonzero terms in the Maclaurin series for each of the following. Check Problems 1-4 to see that you get the same answers using the methods of Section 9.7?
1. Sin (Exp x - 1)
2. Exp (Sin x)
3. (Sin x) (Exp x)
4. (Sin x) / (Exp x)