# Trigonometry Forum

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

1. ### An Interesting Triq Question

• Replies: 4
• Views: 660
Sep 14th 2010, 02:24 AM
2. ### Trig equation

• Replies: 3
• Views: 308
Sep 13th 2010, 02:25 PM
3. ### Demonstration involving sine and cosine

• Replies: 5
• Views: 392
Sep 13th 2010, 09:05 AM
4. ### Need help with sin, cos, tan

• Replies: 3
• Views: 340
Sep 12th 2010, 06:09 PM
5. ### Angle Of Depression Question

• Replies: 2
• Views: 815
Sep 12th 2010, 05:38 AM
6. ### chaleenging one

• Replies: 2
• Views: 526
Sep 10th 2010, 03:18 AM
7. ### Trigonometry 2

• Replies: 1
• Views: 360
Sep 9th 2010, 10:26 PM
8. ### Trigonometry

• Replies: 2
• Views: 303
Sep 9th 2010, 01:17 PM
9. ### Transformations

• Replies: 0
• Views: 476
Sep 9th 2010, 10:40 AM
10. ### sin(x+30deg), why graph move to the left?

• Replies: 8
• Views: 800
Sep 9th 2010, 10:01 AM
11. ### Inverse trig domain

• Replies: 1
• Views: 500
Sep 9th 2010, 06:41 AM
12. ### Trigonometry Proof

• Replies: 4
• Views: 546
Sep 9th 2010, 01:23 AM
13. ### sin(A+B) and cos rule

• Replies: 3
• Views: 534
Sep 8th 2010, 03:31 PM
14. ### Rotation of a square on a plane

• Replies: 2
• Views: 742
Sep 8th 2010, 01:00 PM
15. ### Find SEC

• Replies: 1
• Views: 402
Sep 7th 2010, 09:46 PM
16. ### Proof that this equation is valid (have tried to solve myself many times..)

• Replies: 4
• Views: 406
Sep 7th 2010, 08:55 PM
17. ### Solution of Oblique Triangles Help

• Replies: 3
• Views: 1,449
Sep 7th 2010, 05:39 PM
18. ### Using Trigonometric Identity

• Replies: 3
• Views: 726
Sep 7th 2010, 03:21 AM
19. ### Sin and Cos

• Replies: 2
• Views: 536
Sep 6th 2010, 07:43 PM
20. ### Trigonometry and Surds

• Replies: 2
• Views: 2,320
Sep 6th 2010, 11:36 AM
21. ### What's the difference between these two trig identity problems?

• Replies: 2
• Views: 617
Sep 6th 2010, 09:03 AM
22. ### Trigonometry Distance Problems--Working with angles and sides

• Replies: 3
• Views: 1,071
Sep 5th 2010, 09:22 PM
23. ### ooh a tricky question

• Replies: 16
• Views: 1,274
Sep 5th 2010, 06:29 AM
24. ### Help with simple goniometrics

• Replies: 3
• Views: 638
Sep 5th 2010, 04:34 AM
25. ### [SOLVED] some more trig identities

• Replies: 2
• Views: 459
Sep 4th 2010, 11:55 PM
26. ### trig identities help needed

• Replies: 2
• Views: 440
Sep 4th 2010, 06:42 PM

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