Skip to main content

Get full access to Basic Technical Mathematics, 11th Edition and 60K+ other titles, with a free 10-day trial of O'Reilly.

There are also live events, courses curated by job role, and more.

Start your free trial

Exercises 12.6, page 363

1. $5.09 (\cos 258.7 ° + j \sin 258.7 °)$
3. $613 (\cos 281.5 ° + j \sin 281.5 °)$
5. $8 (\cos 80 ° + j \sin 80 °)$
7. $3 (\cos 250 ° + j \sin 250 °)$
9. $2 (\cos 35 ° + j \sin 35 °)$
11. $2.4 ∠ \underline{170 °}$
13. $0.008 (\cos 105 ° + j \sin 105 °)$
15. $256 (\cos 0 ° + j \sin 0 °)$
17. $0.8 ∠ \underline{273 °}$
19. $5 ∠ \underline{87 °}$
21. $1.73 ∠ \underline{79.8 °}$
23. $11,750 ∠ \underline{115.91 °}$
25. $65.0 (\cos 345.7 ° + j \sin 345.7 °) = 63 - 16 j$
27. $61.4 (\cos 343.9 ° + j \sin 343.9 °); 59 - 17 j$
29. $2.21 (\cos 71.6 ° + j \sin 71.6 °); \frac{7}{10} + \frac{21}{10} j$
31. $3.85 (\cos 120.5 ° + j \sin 120.5 °) = \frac{10}{169} (- 33 + 56 j)$
33. $625 (\cos 212.5 ° + j \sin 212.5 °) = - 527 - 336 j$
35. $2 (\cos 30 ° + j \sin 30 °); 2 (\cos 210 ° + j \sin 210 °)$
37. $- 0.364 + 1.67 j, - 1.26 - 1.15 j, 1.63 - 0.520 j$
39. $1.10 ...$

Get Basic Technical Mathematics, 11th Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial

Don’t leave empty-handed

Get Mark Richards’s Software Architecture Patterns ebook to better understand how to design components—and how they should interact.

It’s yours, free.

Get it now

Cover of Software Architecture Patterns

Check it out now on O’Reilly

Dive in for free with a 10-day trial of the O’Reilly learning platform—then explore all the other resources our members count on to build skills and solve problems every day.

Start your free trial Become a member now