# Trigonometry Forum

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

1. ### Trigonometry Proofs

• Replies: 2
• Views: 581
Aug 15th 2015, 02:51 PM
2. ### Unit Circle Trigonometry

• Replies: 1
• Views: 490
Aug 15th 2015, 10:37 AM
3. ### sin^4(Ө) = 3/8-3/8 cos(2Ө). Prove the trigonometric identity

• Replies: 3
• Views: 781
Aug 13th 2015, 09:58 PM
4. ### Inverse function's range and trig identities

• Replies: 3
• Views: 645
Aug 11th 2015, 09:39 AM
5. ### Rational Trigonometry

• Replies: 7
• Views: 905
Aug 1st 2015, 02:57 PM
6. ### Trig proof problem

• Replies: 1
• Views: 537
Jul 23rd 2015, 04:08 AM
7. ### Find Domain and Range

• Replies: 8
• Views: 822
Jul 22nd 2015, 08:14 PM
8. ### 2 Trigonometry word problems

• Replies: 12
• Views: 1,377
Jul 21st 2015, 05:45 AM
9. ### Maximum of function

• Replies: 4
• Views: 576
Jul 14th 2015, 11:49 AM
10. ### Soving 2 equations...

• Replies: 1
• Views: 489
Jul 14th 2015, 02:07 AM
11. ### Composite curve between functions

• Replies: 2
• Views: 624
Jul 13th 2015, 11:42 AM

• Replies: 3
• Views: 617
Jul 9th 2015, 11:10 PM
13. ### How do I prove/disprove: (sinx + sin 5x)/(cosx + cos 5x) ≟ tan3x

• Replies: 1
• Views: 4,200
Jul 9th 2015, 10:32 PM
14. ### vectors and planes!

• Replies: 4
• Views: 697
Jul 6th 2015, 11:14 PM
15. ### Vectors question, might be easy.

• Replies: 4
• Views: 627
Jul 6th 2015, 07:58 PM
16. ### sin 180-theta=sin theta in a unit circle

• Replies: 2
• Views: 2,569
Jul 5th 2015, 05:41 PM
17. ### Parallel line calculations???

• Replies: 1
• Views: 504
Jul 1st 2015, 07:47 PM

•
•
19. ### Trig , sin , cos

• Replies: 9
• Views: 778
Jun 26th 2015, 11:24 AM

,

,

,

,

,

,

,

,

,

,

,

,

,

,

# how to provr a point is co planar

Click on a term to search for related topics.

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.