HINTS FOR HOMEWORK PROBLEMS FROM CHAPTER 3

Section 3.2

• (1a), (1c), (4a), (4d) See Motivating Example 3.2.1.
• (2a), (2e) See Example 3.2.3.
• (3a) See Example 3.2.5 (2).
• (5a), (5e) See Example 3.2.5 (1).
• (7) See Example 3.2.3 (4).
• (11a), (11e), (12a), (12e) See Example 3.2.15.
• (13a) See Example 3.2.17.
• (15a), (15g), (17a) See Examples 3.2.21.
• (16a), (16b), (18a) See Example 3.2.30.
• (19a) Just compare the estimates.
• (20a) See Examples 3.2.34.
• (21a) See Example 3.2.24.
• (22a) See Examples 3.2.38.

Section 3.3

• (1a), (1b), (1g), (1k), (1q), (1r) See Examples 3.3.12.
• (3a), (3c) See Example 3.3.17.
• (5a), (5d) See Example 3.3.30.
• (6a), (6c), (6d), (7a), (7b) See Examples 3.3.32.

Section 3.4

• (1a), (2a), (2c) See Motivating Example 3.4.1.
• (3a), (3e), (3i) See Examples 3.4.8.
• (4b), (4g) See Examples 3.4.10.
• (4i) Use the additive property of the definite to separately calculate the area for x<0 and for x>0.
• (5d), (5f) See Examples 3.4.13.
• (6b), (6f), (6i) See Examples 3.4.17.
• (7a), (7d), (7e) See Example 3.4.22.
• (8e) See Examples 3.3.32 and 3.4.10.