Technical Mathematics, Sixth Edition

D.5. CHAPTER 5

Exercise 1

1. Fourth

3. Second

5. Fourth

7. First and fourth

9. x = 7

11. E(−1.8, −0.7); F(−1.4, −1.4); G(1.4, −0.6); H(2.5, −1.9)

Exercise 2

Exercise 3

1. y = x²

3. y = 3x − 2

5. y = x² − 2x − 1

7. y = x³ − x

9. y = x³ − 2

11. y = 1.74x² − 2.35x + 1.84

13. y − 2x² − 3x = 3

15. Zeros at x = −2.20 and 0.91. Min at (−0.64, −16.9)

17. Zeros at x = −1.23 and 1.23 Min at (0, −31)

Exercise 4

1. 2

3. −0.797

5. 1

7. −1.40

Exercise 5

1. 3.14

3. −0.34, 2.47

5. −0.79, 1.11

Review Problems