# Trigonometry Forum

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

1. ### trig proof, using factor formula,

• Replies: 5
• Views: 2,032
Dec 21st 2009, 07:29 PM
2. ### simplest form

• Replies: 1
• Views: 691
Dec 21st 2009, 03:56 PM
3. ### Proving a Trigonometric Identity

• Replies: 7
• Views: 867
Dec 21st 2009, 07:00 AM
4. ### Solve ,Know ....

• Replies: 1
• Views: 258
Dec 20th 2009, 11:22 PM
5. ### Tan and Sec

• Replies: 6
• Views: 416
Dec 20th 2009, 03:08 PM
6. ### Trigo equation problem

• Replies: 2
• Views: 387
Dec 19th 2009, 07:44 PM
7. ### Consider the equation 2cos^2x+sinx-1=0

• Replies: 8
• Views: 10,527
Dec 19th 2009, 01:47 PM
8. ### Trig Identity

• Replies: 1
• Views: 643
Dec 19th 2009, 12:10 PM
9. ### Need help with Angles

• Replies: 1
• Views: 429
Dec 19th 2009, 11:23 AM
10. ### trigo equation

• Replies: 3
• Views: 526
Dec 19th 2009, 10:16 AM
11. ### trig, minimum value?

• Replies: 1
• Views: 892
Dec 18th 2009, 01:58 PM
12. ### How do I calculate this cosine?

• Replies: 4
• Views: 539
Dec 18th 2009, 04:52 AM
13. ### This question is blowing my mind!

• Replies: 8
• Views: 696
Dec 18th 2009, 04:41 AM
14. ### If b\cos{\beta} = c\cos{\gamma} prove that

• Replies: 1
• Views: 808
Dec 18th 2009, 12:31 AM
15. ### Trig q

• Replies: 3
• Views: 330
Dec 17th 2009, 10:50 PM
16. ### Arc tan question help!

• Replies: 8
• Views: 500
Dec 17th 2009, 09:58 PM
17. ### New Trigo-equation

• Replies: 2
• Views: 770
Dec 17th 2009, 03:36 PM
18. ### Trigonometry q.

• Replies: 3
• Views: 342
Dec 17th 2009, 02:56 PM
19. ### Angle between two 3D vectors with proper sign

• Replies: 4
• Views: 1,554
Dec 17th 2009, 12:14 PM

• Replies: 8
• Views: 409
Dec 17th 2009, 04:43 AM
21. ### Equation

• Replies: 1
• Views: 300
Dec 17th 2009, 03:02 AM
22. ### Trig question?

• Replies: 1
• Views: 483
Dec 16th 2009, 10:23 PM
23. ### Sine Rule q

• Replies: 2
• Views: 543
Dec 16th 2009, 05:25 PM
24. ### Simplifying trig problem

• Replies: 1
• Views: 619
Dec 16th 2009, 11:29 AM
25. ### Calculate angle

• Replies: 2
• Views: 591
Dec 16th 2009, 10:47 AM
26. ### Finding area and angle of triangle

• Replies: 1
• Views: 620
Dec 16th 2009, 09:03 AM
27. ### Trig function q

• Replies: 1
• Views: 400
Dec 16th 2009, 08:56 AM

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