# Trigonometry Forum

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

1. ### Inverse trigonometric function

• Replies: 2
• Views: 523
Jul 5th 2009, 10:00 PM
2. ### Sine/ Cosine Rule Problems

• Replies: 5
• Views: 743
Jul 5th 2009, 06:42 PM
3. ### Having trouble with these 5 trig exercises

• Replies: 9
• Views: 897
Jul 5th 2009, 02:39 PM
4. ### [SOLVED] Solving trig equations

• Replies: 2
• Views: 502
Jul 5th 2009, 12:49 PM
5. ### simple trig identities

• Replies: 7
• Views: 498
Jul 5th 2009, 07:27 AM
6. ### Angular velocity

• Replies: 3
• Views: 2,891
Jul 5th 2009, 05:41 AM
7. ### Show that the area of the large square in the diagram can be written as (x+y)², and..

• Replies: 4
• Views: 708
Jul 5th 2009, 03:00 AM
8. ### Prove that

• Replies: 2
• Views: 486
Jul 4th 2009, 09:41 AM
9. ### [SOLVED] Trig equation

• Replies: 10
• Views: 592
Jul 4th 2009, 08:38 AM
10. ### Prove that

• Replies: 1
• Views: 276
Jul 4th 2009, 06:19 AM
11. ### Identities

• Replies: 1
• Views: 593
Jul 3rd 2009, 10:32 PM
12. ### Some Trig Help: Find the exact value of cos(−5pi/12)

• Replies: 2
• Views: 7,215
Jul 3rd 2009, 04:11 PM
13. ### Solution and Deduction

• Replies: 9
• Views: 567
Jul 3rd 2009, 12:14 PM
14. ### [SOLVED] Value of sin2x and cos2x when tanx=5/3

• Replies: 11
• Views: 3,418
Jul 3rd 2009, 06:07 AM
15. ### bearing problems

• Replies: 3
• Views: 2,785
Jul 3rd 2009, 05:38 AM
16. ### [SOLVED] (7cosx+5sinx)²=Acos2x+Bsin2x+C

• Replies: 3
• Views: 1,301
Jul 3rd 2009, 03:06 AM
17. ### Solving equations

• Replies: 7
• Views: 543
Jul 3rd 2009, 02:59 AM
18. ### Proving an identity

• Replies: 3
• Views: 796
Jul 2nd 2009, 09:08 PM
19. ### Prove that

• Replies: 1
• Views: 451
Jul 2nd 2009, 07:45 PM
20. ### How to work out the angle between a Rope anchor system

• Replies: 3
• Views: 1,157
Jul 2nd 2009, 07:12 PM
21. ### trig

• Replies: 1
• Views: 374
Jul 2nd 2009, 01:03 AM
22. ### cos2pi

• Replies: 1
• Views: 1,346
Jul 1st 2009, 11:35 PM
23. ### [SOLVED] I cant solve this one at all.

• Replies: 0
• Views: 593
Jul 1st 2009, 12:09 PM
24. ### all possible angles of a trig ratio

• Replies: 5
• Views: 881
Jul 1st 2009, 10:03 AM
25. ### tan

• Replies: 3
• Views: 614
Jul 1st 2009, 04:11 AM
26. ### sin ratio

• Replies: 2
• Views: 626
Jun 29th 2009, 09:03 PM
27. ### [SOLVED] Triangle Trig Prob

• Replies: 5
• Views: 1,418
Jun 29th 2009, 10:45 AM
28. ### Search for an 'elegant' solution

• Replies: 2
• Views: 539
Jun 29th 2009, 04:50 AM

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