# Trigonometry Forum

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

1. ### which of these are true for acute angles?

• Replies: 1
• Views: 469
Sep 15th 2012, 04:51 AM
2. ### Converting from Polar Form to Complex Form?

• Replies: 3
• Views: 805
Sep 14th 2012, 04:18 AM
3. ### Confusion with respect to a general angle

• Replies: 2
• Views: 698
Sep 14th 2012, 02:56 AM
4. ### De Moivre's Theorem

• Replies: 11
• Views: 1,243
Sep 13th 2012, 02:04 AM
5. ### Find the value R

• Replies: 10
• Views: 692
Sep 12th 2012, 10:10 PM
6. ### subtracting fractions with cotangent and cosecant?

• Replies: 2
• Views: 1,058
Sep 12th 2012, 04:23 PM
7. ### trig prove

• Replies: 1
• Views: 396
Sep 12th 2012, 08:26 AM
8. ### Parametric function involving trig

• Replies: 2
• Views: 424
Sep 12th 2012, 12:16 AM

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10. ### How to find rotation angle given output of cos?

• Replies: 1
• Views: 544
Sep 9th 2012, 06:09 PM
11. ### P is a point on a unit circle with coordinates (-0.37, 0.93)

• Replies: 4
• Views: 1,187
Sep 8th 2012, 08:36 AM
12. ### explain why these two expressions are equal

• Replies: 7
• Views: 1,017
Sep 7th 2012, 08:57 PM
13. ### Where can I find the formal way of this formula?

• Replies: 1
• Views: 486
Sep 6th 2012, 12:31 AM
14. ### Trigonometry Word Wheel

• Replies: 4
• Views: 1,049
Sep 5th 2012, 11:34 AM
15. ### If sin36=a, express each of the following in terms of a

• Replies: 4
• Views: 939
Sep 3rd 2012, 09:09 PM
16. ### Use the identity cos^2(theta) + sin^2(theta) = 1

• Replies: 2
• Views: 656
Sep 3rd 2012, 10:55 AM
17. ### Find angle between 0 and pi that's coterminal with 17pi/6?

• Replies: 5
• Views: 7,006
Sep 2nd 2012, 09:20 AM
18. ### Trig general solution

• Replies: 8
• Views: 973
Sep 1st 2012, 04:56 AM
19. ### Compound Angle Question

• Replies: 2
• Views: 603
Aug 31st 2012, 03:18 PM
20. ### Trigonometryc identity

• Replies: 1
• Views: 544
Aug 30th 2012, 03:51 PM
21. ### Trigonometric Equation Problem

• Replies: 6
• Views: 1,844
Aug 29th 2012, 01:54 PM
22. ### Terminal Arm Location

• Replies: 5
• Views: 999
Aug 28th 2012, 05:30 PM
23. ### Why does tan^2 y = x

• Replies: 1
• Views: 767
Aug 28th 2012, 04:34 PM

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