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# Trigonometry Forum

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

1. ### [SOLVED] Trigonometric equation

• Replies: 29
• Views: 1,973
Jul 18th 2010, 07:27 PM
2. ### Verifying Identities

• Replies: 26
• Views: 1,358
Mar 5th 2010, 09:11 PM
3. ### Trigonometry proof

• Replies: 25
• Views: 1,304
Mar 3rd 2016, 06:47 PM
4. ### trig function - proof

• Replies: 24
• Views: 1,885
Jun 8th 2008, 05:13 AM
5. ### Trigonometry help?

• Replies: 23
• Views: 2,118
Dec 8th 2008, 08:06 PM
6. ### Graphing the trig function from to given points?

• Replies: 23
• Views: 3,090
Mar 19th 2011, 04:55 PM
7. ### Urgent Help...Graphs of Sine and Cosine

• Replies: 22
• Views: 1,863
Nov 18th 2007, 06:11 PM
8. ### Pull t out of sin(106*pi*t)

• Replies: 22
• Views: 1,937
Sep 24th 2010, 05:12 PM
9. ### Questions Help

• Replies: 22
• Views: 3,210
Mar 6th 2011, 04:17 PM
10. ### A question on Cosine.

• Replies: 21
• Views: 2,067
Jun 25th 2010, 08:18 AM
11. ### Trig Identity

• Replies: 20
• Views: 1,754
Mar 18th 2008, 07:09 PM
12. ### Trigonometry Addition Formula (Tangent)

• Replies: 20
• Views: 2,465
Sep 1st 2009, 04:22 AM
13. ### Simple trig help!

• Replies: 20
• Views: 1,755
Dec 12th 2009, 06:17 PM
14. ### Finding angles

• Replies: 20
• Views: 2,118
Jan 15th 2010, 03:37 AM
15. ### r formula visualization

• Replies: 18
• Views: 3,986
Nov 20th 2010, 04:37 AM

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# how to provr a point is co planar

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