# Trigonometry Forum

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

1. ### Find the value between 0 and 2pi

• Replies: 4
• Views: 649
Jul 9th 2009, 12:34 AM
2. ### Trig Equation

• Replies: 7
• Views: 400
Jul 8th 2009, 02:51 PM
3. ### Sin or Cos - how do you work these out without a calculator???

• Replies: 2
• Views: 561
Jul 7th 2009, 06:47 AM
4. ### Prove that

• Replies: 3
• Views: 897
Jul 7th 2009, 01:05 AM
5. ### Solve it without using calculaters

• Replies: 5
• Views: 302
Jul 6th 2009, 10:09 PM
6. ### Prove that

• Replies: 4
• Views: 852
Jul 6th 2009, 07:31 PM
7. ### Another trigonometric equation

• Replies: 2
• Views: 443
Jul 6th 2009, 07:25 PM
8. ### Trigonometric Equation

• Replies: 2
• Views: 563
Jul 6th 2009, 02:37 PM
9. ### Trigonomertric identities

• Replies: 1
• Views: 501
Jul 6th 2009, 08:24 AM
10. ### Compound angle formula help

• Replies: 2
• Views: 554
Jul 6th 2009, 07:32 AM
11. ### tan cot sec

• Replies: 3
• Views: 413
Jul 6th 2009, 04:31 AM
12. ### Two electricity pylons P and Q are 550m apart on the same side of a river. .(continue

• Replies: 2
• Views: 391
Jul 6th 2009, 03:04 AM
13. ### Is this the correct area of this triangle?

• Replies: 9
• Views: 411
Jul 6th 2009, 02:06 AM
14. ### What is the length from B to C? What is the area of triangle?

• Replies: 3
• Views: 491
Jul 5th 2009, 11:57 PM
15. ### Inverse trigonometric function

• Replies: 2
• Views: 385
Jul 5th 2009, 11:00 PM
16. ### Sine/ Cosine Rule Problems

• Replies: 5
• Views: 631
Jul 5th 2009, 07:42 PM
17. ### Having trouble with these 5 trig exercises

• Replies: 9
• Views: 534
Jul 5th 2009, 03:39 PM
18. ### [SOLVED] Solving trig equations

• Replies: 2
• Views: 410
Jul 5th 2009, 01:49 PM
19. ### simple trig identities

• Replies: 7
• Views: 392
Jul 5th 2009, 08:27 AM
20. ### Angular velocity

• Replies: 3
• Views: 1,868
Jul 5th 2009, 06:41 AM
21. ### Show that the area of the large square in the diagram can be written as (x+y)², and..

• Replies: 4
• Views: 637
Jul 5th 2009, 04:00 AM
22. ### Prove that

• Replies: 2
• Views: 433
Jul 4th 2009, 10:41 AM
23. ### [SOLVED] Trig equation

• Replies: 10
• Views: 474
Jul 4th 2009, 09:38 AM
24. ### Prove that

• Replies: 1
• Views: 225
Jul 4th 2009, 07:19 AM
25. ### Identities

• Replies: 1
• Views: 432
Jul 3rd 2009, 11:32 PM

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### cosx= .4583?

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