# Trigonometry Forum

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

1. ### [2sin^2(x/2) ] / [2sin(x/2)cos(x/2)]

• Replies: 1
• Views: 1,148
Dec 13th 2011, 06:15 AM
2. ### trig identities

• Replies: 7
• Views: 2,312
Dec 12th 2011, 09:25 AM
3. ### Finding Exact Solutions Trig Equations

• Replies: 11
• Views: 5,907
Dec 11th 2011, 04:42 PM

• Replies: 2
• Views: 1,100
Dec 11th 2011, 02:47 PM
5. ### Finding exact values for trigonometric functions

• Replies: 2
• Views: 777
Dec 11th 2011, 11:41 AM
6. ### Really basic trig question

• Replies: 4
• Views: 755
Dec 10th 2011, 03:04 PM
7. ### vector problem

• Replies: 1
• Views: 700
Dec 10th 2011, 10:17 AM
8. ### Need Help, I got two sides and the area in a triangel .. Would be happy for any help!

• Replies: 1
• Views: 803
Dec 10th 2011, 06:44 AM
9. ### Need help proving trigonometric identities?

• Replies: 7
• Views: 1,619
Dec 9th 2011, 02:56 PM
10. ### Extra Credit Problem I dont understand at all!

• Replies: 1
• Views: 642
Dec 9th 2011, 02:49 PM
11. ### At what time are the trains 400 miles apart?

• Replies: 3
• Views: 1,767
Dec 8th 2011, 02:11 PM
12. ### Trigonometric equation

• Replies: 3
• Views: 462
Dec 8th 2011, 01:51 PM
13. ### Trig identities test tom

• Replies: 3
• Views: 525
Dec 7th 2011, 08:26 PM
14. ### simplify

• Replies: 6
• Views: 488
Dec 7th 2011, 08:03 PM
15. ### trig identities #2

• Replies: 1
• Views: 442
Dec 7th 2011, 08:00 PM
16. ### trig identities

• Replies: 3
• Views: 610
Dec 7th 2011, 07:58 PM
17. ### Linear Velocity?

• Replies: 5
• Views: 579
Dec 7th 2011, 06:06 AM
18. ### How to solve trig equations - is it ok to take values off graph

• Replies: 2
• Views: 554
Dec 7th 2011, 04:24 AM
19. ### Exact values in radians of θ, goven cosec & tan

• Replies: 2
• Views: 891
Dec 6th 2011, 01:30 PM
20. ### Prove that 1+ cos 2θ + cos 4θ+ cos 6θ = 4 cos θ cos 2θ cos 3θ

• Replies: 3
• Views: 1,492
Dec 5th 2011, 11:56 PM
21. ### Difficult-ish Trig Identity

• Replies: 2
• Views: 520
Dec 5th 2011, 08:54 PM
22. ### Finding the Radius when all i have is the arc length

• Replies: 5
• Views: 489
Dec 5th 2011, 06:02 PM
23. ### Solving a nonlinear system

• Replies: 4
• Views: 792
Dec 5th 2011, 04:02 PM
24. ### solving for value beta in eigen value formula

• Replies: 2
• Views: 532
Dec 5th 2011, 09:56 AM
25. ### [SOLVED] Eccentricity of ellipse

• Replies: 1
• Views: 748
Dec 5th 2011, 04:33 AM
26. ### Solving systems by graphing

• Replies: 3
• Views: 441
Dec 5th 2011, 12:52 AM

• Replies: 3
• Views: 681
Dec 4th 2011, 04:16 PM
28. ### [SOLVED] Help with trig addition and subtraction formulas.

• Replies: 10
• Views: 707
Dec 4th 2011, 02:10 PM

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