# Trigonometry Forum

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

1. ### Need help with a review question

• Replies: 1
• Views: 394
May 19th 2009, 02:50 PM
2. ### Identities

• Replies: 2
• Views: 329
May 19th 2009, 01:20 PM
3. ### Weird Equation

• Replies: 6
• Views: 423
May 19th 2009, 09:21 AM
4. ### Need help with solving sums of cosines

• Replies: 3
• Views: 436
May 18th 2009, 09:12 PM
5. ### [SOLVED] trigonometry forum- proofs

• Replies: 6
• Views: 537
May 18th 2009, 07:46 PM
6. ### Graphing a function domain and range

• Replies: 2
• Views: 610
May 18th 2009, 04:55 PM
7. ### trig substitution?

• Replies: 4
• Views: 441
May 18th 2009, 03:08 PM
8. ### Triangle Problem! Help

• Replies: 10
• Views: 845
May 18th 2009, 09:54 AM
9. ### Solving for an angle

• Replies: 1
• Views: 312
May 18th 2009, 08:18 AM

• Replies: 1
• Views: 348
May 18th 2009, 07:53 AM
11. ### Sin, Tan, Cos?

• Replies: 1
• Views: 419
May 18th 2009, 01:32 AM
12. ### Position Puzzle

• Replies: 1
• Views: 413
May 17th 2009, 04:09 PM
13. ### y= ASin(Bx+C)+D

• Replies: 4
• Views: 2,538
May 17th 2009, 03:37 PM
14. ### Help with trig functions please

• Replies: 2
• Views: 443
May 17th 2009, 12:42 PM
15. ### cos((sinx)^-1)

• Replies: 2
• Views: 673
May 17th 2009, 01:35 AM
16. ### Simple Harmonic Motion

• Replies: 3
• Views: 872
May 16th 2009, 06:14 AM
17. ### [SOLVED] Getting the wrong sign for cosx+sinx=rsin(x+alpha)

• Replies: 3
• Views: 1,165
May 15th 2009, 08:50 AM
18. ### Trig Identity Problem

• Replies: 1
• Views: 1,020
May 15th 2009, 08:12 AM
19. ### stuck with 4 questions

• Replies: 4
• Views: 540
May 15th 2009, 07:23 AM
20. ### could you help me with these problem please ??

• Replies: 2
• Views: 460
May 15th 2009, 04:40 AM
21. ### Trig identity question

• Replies: 2
• Views: 428
May 14th 2009, 12:33 PM
22. ### How?

• Replies: 2
• Views: 294
May 14th 2009, 11:56 AM
23. ### General Solutions

• Replies: 3
• Views: 605
May 14th 2009, 06:29 AM
24. ### help with trig problems!!!

• Replies: 1
• Views: 1,687
May 13th 2009, 06:00 PM
25. ### A few problems...Compound & double-angle trig. formulae

• Replies: 8
• Views: 962
May 13th 2009, 04:25 PM
26. ### 1 problem

• Replies: 1
• Views: 565
May 13th 2009, 02:01 PM

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