# Trigonometry Forum

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

1. ### 9 sin(2α) sin(3α)

• Replies: 1
• Views: 654
Apr 25th 2010, 08:54 PM
2. ### Simplifying math identity

• Replies: 2
• Views: 448
Apr 25th 2010, 05:57 PM
3. ### prove the identity

• Replies: 6
• Views: 905
Apr 25th 2010, 04:22 PM
4. ### Create algorithm for cam shapes from vector drawing

• Replies: 0
• Views: 950
Apr 25th 2010, 03:02 PM
5. ### one more proof

• Replies: 1
• Views: 423
Apr 25th 2010, 09:09 AM
6. ### Vectors question

• Replies: 1
• Views: 531
Apr 25th 2010, 07:27 AM
7. ### Derive tan (x/2)

• Replies: 3
• Views: 1,005
Apr 25th 2010, 12:51 AM
8. ### Area of a quadrilateral solved with trig

• Replies: 2
• Views: 1,500
Apr 25th 2010, 12:49 AM
9. ### Rsin(x+a) problem

• Replies: 4
• Views: 599
Apr 24th 2010, 11:45 PM
10. ### Simple Trig Identity - help

• Replies: 3
• Views: 422
Apr 24th 2010, 08:05 PM
11. ### 2(cosy-cosx)/(sinx*siny)

• Replies: 1
• Views: 819
Apr 24th 2010, 09:54 AM
12. ### Polar Equation

• Replies: 1
• Views: 451
Apr 24th 2010, 01:47 AM
13. ### Inverse circular relations problems

• Replies: 4
• Views: 729
Apr 23rd 2010, 10:34 PM
14. ### Trigonometry, Circles, Chord length, Area of Segment problem

• Replies: 1
• Views: 1,194
Apr 23rd 2010, 04:55 PM
15. ### A couple triangle + angle value problems...

• Replies: 1
• Views: 478
Apr 22nd 2010, 08:28 PM
16. ### Trigonometric equations

• Replies: 1
• Views: 604
Apr 22nd 2010, 04:10 PM
17. ### help solving identity simple problem

• Replies: 1
• Views: 439
Apr 22nd 2010, 02:09 PM
18. ### Horrible tan equation

• Replies: 1
• Views: 540
Apr 22nd 2010, 02:06 PM
19. ### Help proving an identity

• Replies: 1
• Views: 856
Apr 22nd 2010, 11:57 AM
20. ### [SOLVED] solutions

• Replies: 1
• Views: 414
Apr 21st 2010, 06:23 AM
21. ### Prove The Identity

• Replies: 2
• Views: 4,795
Apr 21st 2010, 04:14 AM
22. ### (3sin20+5cos70)/2sin20= ?

• Replies: 1
• Views: 959
Apr 21st 2010, 12:47 AM
23. ### proving

• Replies: 2
• Views: 502
Apr 20th 2010, 11:13 PM
24. ### Proved that

• Replies: 2
• Views: 482
Apr 20th 2010, 02:38 PM
25. ### Simple double angle formulae

• Replies: 1
• Views: 505
Apr 20th 2010, 10:21 AM
26. ### Trig functions (angles of a triangle)

• Replies: 1
• Views: 746
Apr 20th 2010, 02:08 AM
27. ### help with math modeling: trig horizontal shift

• Replies: 0
• Views: 595
Apr 19th 2010, 05:52 PM

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