# Trigonometry Forum

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

1. ### trigonometry recatangular to polar form

• Replies: 1
• Views: 488
Dec 11th 2008, 02:06 AM
2. ### Verify that √((1-cosx)/(1+cosx)) = (1-cosx)/|sinx|

• Replies: 3
• Views: 12,570
Dec 10th 2008, 08:39 PM
3. ### Trig Proof/Verification : cot 2x = (1+cos4x)/sin4x

• Replies: 3
• Views: 3,750
Dec 10th 2008, 08:25 PM
4. ### Bearings Problem - cannot solve it!

• Replies: 1
• Views: 820
Dec 10th 2008, 08:23 PM
5. ### finding powers of a complex number

• Replies: 1
• Views: 623
Dec 10th 2008, 07:35 PM
6. ### Trig problem

• Replies: 2
• Views: 519
Dec 10th 2008, 07:18 PM
7. ### Another trig help needed asap!

• Replies: 1
• Views: 735
Dec 10th 2008, 06:33 PM
8. ### Help Me with trigs please

• Replies: 3
• Views: 968
Dec 10th 2008, 05:29 PM
9. ### cosx = -5/13 ... find sin2x

• Replies: 2
• Views: 1,320
Dec 10th 2008, 05:24 PM
10. ### Solve the following equations

• Replies: 1
• Views: 595
Dec 10th 2008, 05:22 PM
11. ### Shortest Distance around a volcano

• Replies: 0
• Views: 551
Dec 10th 2008, 02:50 PM
12. ### complex number help

• Replies: 1
• Views: 581
Dec 10th 2008, 12:53 PM
13. ### Need help with three questions

• Replies: 0
• Views: 439
Dec 10th 2008, 12:23 PM
14. ### Double-angle formulas with complex numbers

• Replies: 4
• Views: 581
Dec 10th 2008, 10:43 AM
15. ### trig problem

• Replies: 3
• Views: 1,771
Dec 10th 2008, 04:23 AM
16. ### Find all solutions for....

• Replies: 6
• Views: 524
Dec 10th 2008, 04:07 AM
17. ### using cofunction identities

• Replies: 2
• Views: 1,178
Dec 9th 2008, 09:18 PM
18. ### Linear and Angular Speed

• Replies: 2
• Views: 2,004
Dec 9th 2008, 08:53 PM
19. ### Difficult Trig Proof

• Replies: 3
• Views: 2,208
Dec 9th 2008, 06:38 PM
20. ### Ferris Wheel Equation?

• Replies: 1
• Views: 2,819
Dec 9th 2008, 05:19 PM
21. ### High Tide, Low Tide

• Replies: 1
• Views: 1,218
Dec 9th 2008, 03:56 PM
22. ### Urgent: Sinusoidal functions HELP NOW PLZ

• Replies: 1
• Views: 1,027
Dec 9th 2008, 02:01 PM

• Replies: 4
• Views: 828
Dec 9th 2008, 12:39 PM
24. ### Quick Trig Question, help please

• Replies: 1
• Views: 930
Dec 9th 2008, 12:04 PM
25. ### Quick trig problem...

• Replies: 1
• Views: 501
Dec 9th 2008, 10:53 AM
26. ### How do I solve this problem?

• Replies: 1
• Views: 534
Dec 9th 2008, 10:40 AM

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# trigonometry sotr

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