# Trigonometry Forum

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

1. ### verifying,simplifying, factoring trigs

• Replies: 6
• Views: 517
Apr 27th 2009, 11:11 AM
2. ### Trig prob

• Replies: 2
• Views: 452
Apr 27th 2009, 10:55 AM
3. ### Can you show mi working for this

• Replies: 4
• Views: 501
Apr 27th 2009, 09:28 AM
4. ### cos 3x sin2x = 1 /16 (2 cos x - cos 3x - cos 5x)

• Replies: 1
• Views: 2,227
Apr 27th 2009, 07:56 AM
5. ### Solving a trigonometric equation

• Replies: 1
• Views: 474
Apr 27th 2009, 07:32 AM

• Replies: 4
• Views: 840
Apr 27th 2009, 04:32 AM
7. ### Did I answer this correctly? Trig rotation question

• Replies: 1
• Views: 459
Apr 27th 2009, 01:30 AM
8. ### Is this work correct?

• Replies: 1
• Views: 582
Apr 26th 2009, 09:15 PM
9. ### Find maximum and minimum value of

• Replies: 1
• Views: 442
Apr 26th 2009, 08:53 PM
10. ### factorin question

• Replies: 2
• Views: 262
Apr 26th 2009, 03:09 PM
11. ### [SOLVED] harbour depth trig functions

• Replies: 2
• Views: 426
Apr 26th 2009, 01:35 PM
12. ### Checking sinusoidal function word problems

• Replies: 0
• Views: 1,162
Apr 26th 2009, 12:47 PM
13. ### Is this angle of elevation correct?

• Replies: 4
• Views: 1,487
Apr 26th 2009, 12:46 PM
14. ### I need help with one more trig prob, on how to set it up

• Replies: 1
• Views: 572
Apr 26th 2009, 12:15 PM
15. ### How do I solve this angle of depression for x?

• Replies: 6
• Views: 474
Apr 26th 2009, 11:24 AM
16. ### Double Angle ID issues, did my teacher grade wrong?

• Replies: 5
• Views: 613
Apr 26th 2009, 10:11 AM
17. ### [SOLVED] Proving identity Question 2

• Replies: 2
• Views: 577
Apr 26th 2009, 08:58 AM
18. ### Sinusoidal function word problems

• Replies: 0
• Views: 1,017
Apr 26th 2009, 08:46 AM
19. ### Need help with a Trig equation

• Replies: 4
• Views: 473
Apr 26th 2009, 06:01 AM
20. ### problem with bearings

• Replies: 3
• Views: 476
Apr 26th 2009, 04:24 AM
21. ### [SOLVED] asymptotes of a tan function

• Replies: 11
• Views: 933
Apr 25th 2009, 07:35 PM
22. ### some trig functions

• Replies: 1
• Views: 470
Apr 25th 2009, 07:33 PM
23. ### Trig identities *eek*

• Replies: 5
• Views: 675
Apr 25th 2009, 06:33 PM
24. ### Proving Trigonometric Identity

• Replies: 5
• Views: 484
Apr 25th 2009, 04:27 PM

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# "trigonometric ratios and trigonometric identities" solution

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