# Trigonometry Forum

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

1. ### Finding the variables

• Replies: 1
• Views: 417
Jul 8th 2012, 05:38 PM
2. ### solve for C: cos(270-D-C)+cos(C-90)=b

• Replies: 2
• Views: 844
Jul 7th 2012, 08:21 AM
3. ### sin(arcsin(x/3)) why just positive?

• Replies: 3
• Views: 919
Jul 7th 2012, 02:47 AM
4. ### Equation of ellipse from directrix and focus

• Replies: 0
• Views: 1,091
Jul 5th 2012, 07:35 PM
5. ### During a 12hour period, the tiles in one area of the bay of Fundy cause the water...

• Replies: 2
• Views: 1,985
Jul 5th 2012, 05:07 PM

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7. ### Trig

• Replies: 1
• Views: 500
Jul 4th 2012, 10:08 AM
8. ### Way to prove why the 4,3,2,1 pattern occurs in the unit circle coordinates?

• Replies: 6
• Views: 1,150
Jul 4th 2012, 09:13 AM
9. ### Basic trig problem (finding side)

• Replies: 3
• Views: 921
Jul 2nd 2012, 03:07 PM
10. ### How to find unit vector

• Replies: 2
• Views: 525
Jul 2nd 2012, 12:38 PM
11. ### Howto: simple means of entering math expressions without Latex

• Replies: 2
• Views: 966
Jul 1st 2012, 03:45 AM
12. ### Simplifying trig expression

• Replies: 3
• Views: 654
Jun 30th 2012, 11:16 AM
13. ### Factoring exponents from trig functions

• Replies: 3
• Views: 1,048
Jun 29th 2012, 08:31 PM
14. ### Solving Vector Triangles (Law of Sines and Cosines possibly)

• Replies: 1
• Views: 643
Jun 26th 2012, 12:03 PM
15. ### Solve sin(x) = cos(2x) for all x

• Replies: 7
• Views: 5,748
Jun 25th 2012, 08:52 PM
16. ### Trigonometric Identities (2)

• Replies: 1
• Views: 592
Jun 25th 2012, 09:46 AM
17. ### Prove the triangle identity

• Replies: 1
• Views: 517
Jun 24th 2012, 05:25 AM

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19. ### [SOLVED] Need help on Right Triangles

• Replies: 3
• Views: 440
Jun 19th 2012, 05:13 PM
20. ### sinusoidal function

• Replies: 8
• Views: 9,574
Jun 19th 2012, 01:30 PM
21. ### trig identity

• Replies: 1
• Views: 476
Jun 17th 2012, 08:12 AM
22. ### Help with sinusoidal function rule

• Replies: 1
• Views: 446
Jun 14th 2012, 11:39 PM

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