# Trigonometry Forum

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

1. ### Proving an identity.

• Replies: 2
• Views: 573
Apr 12th 2011, 05:22 PM
2. ### Trig Proof

• Replies: 2
• Views: 682
Apr 11th 2011, 08:02 PM
3. ### [SOLVED] sin(x)=1/3. What is cos(x?)

• Replies: 6
• Views: 10,919
Apr 11th 2011, 11:46 AM
4. ### complex identities

• Replies: 5
• Views: 641
Apr 9th 2011, 06:19 PM
5. ### finding sine, cosine, and tangent of theta

• Replies: 1
• Views: 1,267
Apr 8th 2011, 12:51 PM
6. ### compact disc with diameter of 120mm

• Replies: 1
• Views: 957
Apr 7th 2011, 05:33 PM
7. ### Problem with Inscribed Square

• Replies: 3
• Views: 548
Apr 6th 2011, 03:02 PM

• Replies: 5
• Views: 654
Apr 6th 2011, 02:40 PM
9. ### A Simple Pythogoras GCSE Question

• Replies: 1
• Views: 433
Apr 6th 2011, 01:48 PM
10. ### value of x in an isosceles triangle

• Replies: 1
• Views: 3,175
Apr 6th 2011, 08:43 AM
11. ### find hypotenuse

• Replies: 4
• Views: 829
Apr 6th 2011, 07:34 AM
12. ### Question about the tangent function

• Replies: 1
• Views: 792
Apr 6th 2011, 04:37 AM
13. ### Double / Half & Area Trig Help

• Replies: 5
• Views: 733
Apr 6th 2011, 04:34 AM
14. ### Area of a polygon on the unit circle

• Replies: 4
• Views: 1,433
Apr 5th 2011, 11:16 PM
15. ### Inverse circular functions

• Replies: 1
• Views: 753
Apr 5th 2011, 04:05 PM
16. ### exponential function on wikipedia

• Replies: 2
• Views: 556
Apr 5th 2011, 11:03 AM
17. ### complex plane

• Replies: 8
• Views: 725
Apr 4th 2011, 11:57 AM
18. ### Find all sides of a right angle triangle given the area and an angle.

• Replies: 1
• Views: 1,325
Apr 4th 2011, 11:36 AM
19. ### Point that is perpendicular to a line of a plane?

• Replies: 2
• Views: 767
Apr 4th 2011, 06:55 AM
20. ### equation using identites

• Replies: 2
• Views: 838
Apr 4th 2011, 06:11 AM
21. ### question about complex plane

• Replies: 5
• Views: 744
Apr 3rd 2011, 11:04 AM
22. ### How to find the value of sin45 degrees?

• Replies: 4
• Views: 1,035
Apr 3rd 2011, 09:13 AM
23. ### Need help with going through the process of solving each outer side of Right Triangle

• Replies: 2
• Views: 1,680
Apr 3rd 2011, 07:17 AM
24. ### two trig proofs

• Replies: 1
• Views: 605
Apr 3rd 2011, 01:21 AM
25. ### prove that if sin(a/2) ≠ 0 then...

• Replies: 5
• Views: 719
Apr 2nd 2011, 11:31 AM
26. ### Modeling motion using parametirc equations?

• Replies: 1
• Views: 899
Apr 2nd 2011, 10:57 AM

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