# Trigonometry Forum

Trigonometry Help Forum: Graphing trig expressions, identities, angles, applied questions

1. ### Triangle problem

• Replies: 2
• Views: 824
Mar 12th 2009, 07:07 AM
2. ### domain and range

• Replies: 1
• Views: 774
Mar 12th 2009, 05:34 AM
3. ### Trig Proof Issue..

• Replies: 2
• Views: 534
Mar 11th 2009, 07:15 PM
4. ### sine/cosine function -----> are both true for when it is negative?

• Replies: 1
• Views: 740
Mar 11th 2009, 06:21 PM
5. ### Write the expressions in terms of cosine?

• Replies: 3
• Views: 852
Mar 11th 2009, 11:27 AM
6. ### urgent homework

• Replies: 3
• Views: 525
Mar 10th 2009, 09:34 PM
7. ### finding the exact value

• Replies: 6
• Views: 1,715
Mar 10th 2009, 09:11 PM
8. ### show identity

• Replies: 6
• Views: 570
Mar 10th 2009, 08:05 PM
9. ### [SOLVED] Simplifying where am I going wrong?

• Replies: 1
• Views: 681
Mar 10th 2009, 05:07 PM
10. ### I need help with trig

• Replies: 1
• Views: 451
Mar 10th 2009, 02:53 PM
11. ### Trigonometry - Compound Angles

• Replies: 2
• Views: 675
Mar 10th 2009, 01:09 PM
12. ### problem set help

• Replies: 2
• Views: 457
Mar 10th 2009, 10:53 AM
13. ### [SOLVED] trig identity: true or false

• Replies: 1
• Views: 550
Mar 9th 2009, 04:59 PM
14. ### finding functions for lines which break

• Replies: 0
• Views: 390
Mar 9th 2009, 01:37 PM
15. ### Last complex trig question...hopefully! =p

• Replies: 0
• Views: 362
Mar 9th 2009, 01:12 PM
16. ### Trig series - Complex number

• Replies: 2
• Views: 538
Mar 9th 2009, 12:14 PM
17. ### Trigonometry

• Replies: 1
• Views: 695
Mar 9th 2009, 11:17 AM
18. ### Reference Triangle for csc(-150degrees)

• Replies: 1
• Views: 695
Mar 9th 2009, 07:14 AM
19. ### Finding the height with trig

• Replies: 1
• Views: 395
Mar 8th 2009, 07:35 PM
20. ### Rational Trigonometry

• Replies: 6
• Views: 825
Mar 8th 2009, 07:00 PM
21. ### Oscillating spring measurements?

• Replies: 1
• Views: 1,024
Mar 8th 2009, 02:45 PM
22. ### Solve a trigonometric equation

• Replies: 3
• Views: 628
Mar 8th 2009, 10:22 AM
23. ### trigonometry :extended section

• Replies: 6
• Views: 520
Mar 8th 2009, 08:39 AM
24. ### cos-1(0) = 90, so cos 90 = 0 but...

• Replies: 2
• Views: 2,352
Mar 8th 2009, 01:37 AM
25. ### [SOLVED] Urgentt HELP! 3D Trigonometry Problem

• Replies: 8
• Views: 937
Mar 7th 2009, 02:13 PM
26. ### Direction of a line segment relative to another

• Replies: 2
• Views: 567
Mar 7th 2009, 01:22 PM
27. ### Double Angle Question

• Replies: 3
• Views: 563
Mar 7th 2009, 12:09 PM
28. ### First time with trigonometric identities

• Replies: 9
• Views: 861
Mar 7th 2009, 11:34 AM
29. ### questions on some concepts

• Replies: 1
• Views: 454
Mar 7th 2009, 07:07 AM

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