# Trigonometry Forum

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

1. ### Trigonometry. sinus

• Replies: 1
• Views: 1,292
Jan 3rd 2010, 08:53 AM
2. ### Edexcel C3 past paper question

• Replies: 4
• Views: 4,791
Jan 3rd 2010, 08:02 AM
3. ### need help on 2 simutaneous trig. equations

• Replies: 4
• Views: 512
Jan 2nd 2010, 09:55 PM
4. ### Need some help with arcus functions

• Replies: 3
• Views: 736
Jan 2nd 2010, 08:03 AM
5. ### trigo: proving an identity

• Replies: 3
• Views: 700
Dec 31st 2009, 09:12 AM
6. ### Simpl-equation

• Replies: 2
• Views: 538
Dec 31st 2009, 03:15 AM
7. ### Multiple Angle Formula Help

• Replies: 5
• Views: 690
Dec 30th 2009, 09:07 AM
8. ### reciprocal functions question

• Replies: 2
• Views: 726
Dec 30th 2009, 08:18 AM
9. ### trig proof

• Replies: 4
• Views: 645
Dec 30th 2009, 03:03 AM
10. ### tan2x

• Replies: 2
• Views: 630
Dec 30th 2009, 01:23 AM
11. ### solving this identity

• Replies: 5
• Views: 528
Dec 29th 2009, 02:24 PM
12. ### Angle multiplication

• Replies: 3
• Views: 419
Dec 29th 2009, 01:16 PM
13. ### trig equation

• Replies: 13
• Views: 468
Dec 28th 2009, 01:11 PM
14. ### trig identities help !

• Replies: 2
• Views: 497
Dec 28th 2009, 04:39 AM
15. ### tan(A-B)/tan(A) + (sinC)^2/(sinA)^2=1

• Replies: 2
• Views: 838
Dec 28th 2009, 12:29 AM
16. ### Moving onto trigo equations :(

• Replies: 1
• Views: 521
Dec 27th 2009, 05:30 AM
17. ### Proving an Identity

• Replies: 9
• Views: 592
Dec 26th 2009, 10:23 PM
18. ### Identity

• Replies: 5
• Views: 403
Dec 26th 2009, 09:11 PM
19. ### cotangent identity problem

• Replies: 3
• Views: 412
Dec 26th 2009, 03:17 PM
20. ### trig arithmetic series..

• Replies: 2
• Views: 1,127
Dec 26th 2009, 08:23 AM
21. ### Help required on solving Trigo sum..

• Replies: 5
• Views: 398
Dec 26th 2009, 06:07 AM
22. ### Trig/precalc bearing problems need help

• Replies: 6
• Views: 2,726
Dec 26th 2009, 03:51 AM
23. ### sin^2A+sinBsinCcosA=

• Replies: 1
• Views: 275
Dec 25th 2009, 10:33 PM
24. ### Tan graph

• Replies: 1
• Views: 480
Dec 25th 2009, 07:27 PM
25. ### trigo problem

• Replies: 4
• Views: 636
Dec 24th 2009, 07:08 AM
26. ### line equations, trig

• Replies: 4
• Views: 1,540
Dec 23rd 2009, 01:24 PM
27. ### problems with cosine equation

• Replies: 10
• Views: 581
Dec 23rd 2009, 01:00 PM
28. ### Proving Identities problem

• Replies: 3
• Views: 622
Dec 23rd 2009, 03:53 AM

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