Trigonometry Forum

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

1. Trigonomertric identities

• Replies: 1
• Views: 855
Jul 6th 2009, 07:24 AM
2. Compound angle formula help

• Replies: 2
• Views: 711
Jul 6th 2009, 06:32 AM
3. tan cot sec

• Replies: 3
• Views: 560
Jul 6th 2009, 03:31 AM
4. Two electricity pylons P and Q are 550m apart on the same side of a river. .(continue

• Replies: 2
• Views: 470
Jul 6th 2009, 02:04 AM
5. Is this the correct area of this triangle?

• Replies: 9
• Views: 652
Jul 6th 2009, 01:06 AM
6. What is the length from B to C? What is the area of triangle?

• Replies: 3
• Views: 611
Jul 5th 2009, 10:57 PM
7. Inverse trigonometric function

• Replies: 2
• Views: 548
Jul 5th 2009, 10:00 PM
8. Sine/ Cosine Rule Problems

• Replies: 5
• Views: 758
Jul 5th 2009, 06:42 PM
9. Having trouble with these 5 trig exercises

• Replies: 9
• Views: 934
Jul 5th 2009, 02:39 PM
10. [SOLVED] Solving trig equations

• Replies: 2
• Views: 512
Jul 5th 2009, 12:49 PM
11. simple trig identities

• Replies: 7
• Views: 506
Jul 5th 2009, 07:27 AM
12. Angular velocity

• Replies: 3
• Views: 2,995
Jul 5th 2009, 05:41 AM
13. Show that the area of the large square in the diagram can be written as (x+y)², and..

• Replies: 4
• Views: 716
Jul 5th 2009, 03:00 AM
14. Prove that

• Replies: 2
• Views: 488
Jul 4th 2009, 09:41 AM
15. [SOLVED] Trig equation

• Replies: 10
• Views: 605
Jul 4th 2009, 08:38 AM
16. Prove that

• Replies: 1
• Views: 282
Jul 4th 2009, 06:19 AM
17. Identities

• Replies: 1
• Views: 620
Jul 3rd 2009, 10:32 PM
18. Some Trig Help: Find the exact value of cos(−5pi/12)

• Replies: 2
• Views: 7,306
Jul 3rd 2009, 04:11 PM
19. Solution and Deduction

• Replies: 9
• Views: 579
Jul 3rd 2009, 12:14 PM
20. [SOLVED] Value of sin2x and cos2x when tanx=5/3

• Replies: 11
• Views: 3,514
Jul 3rd 2009, 06:07 AM
21. bearing problems

• Replies: 3
• Views: 2,878
Jul 3rd 2009, 05:38 AM
22. [SOLVED] (7cosx+5sinx)²=Acos2x+Bsin2x+C

• Replies: 3
• Views: 1,336
Jul 3rd 2009, 03:06 AM
23. Solving equations

• Replies: 7
• Views: 562
Jul 3rd 2009, 02:59 AM
24. Proving an identity

• Replies: 3
• Views: 807
Jul 2nd 2009, 09:08 PM
25. Prove that

• Replies: 1
• Views: 461
Jul 2nd 2009, 07:45 PM
26. How to work out the angle between a Rope anchor system

• Replies: 3
• Views: 1,167
Jul 2nd 2009, 07:12 PM
27. trig

• Replies: 1
• Views: 377
Jul 2nd 2009, 01:03 AM
28. cos2pi

• Replies: 1
• Views: 1,398
Jul 1st 2009, 11:35 PM

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trigonometry sotr

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