# Trigonometry Forum

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

1. ### Trig Identity Proof

• Replies: 5
• Views: 389
Aug 30th 2011, 03:51 PM
2. ### confusion with simple trig problem

• Replies: 1
• Views: 419
Aug 30th 2011, 11:46 AM
3. ### tan and cos

• Replies: 3
• Views: 689
Aug 29th 2011, 12:43 PM
4. ### Proof using Law of Sines

• Replies: 1
• Views: 558
Aug 27th 2011, 01:28 AM
5. ### solving complex equation using euler's formula

• Replies: 6
• Views: 1,048
Aug 26th 2011, 05:29 PM
6. ### [SOLVED] sec (-1/2) in radians?

• Replies: 1
• Views: 973
Aug 26th 2011, 02:11 PM
7. ### tan alpha = 1/2

• Replies: 3
• Views: 4,318
Aug 25th 2011, 11:51 AM
8. ### circle incribed in a circular sector

• Replies: 2
• Views: 568
Aug 24th 2011, 07:29 PM
9. ### A small problem on cos a + cos 2a + cos 3a equation

• Replies: 6
• Views: 1,967
Aug 24th 2011, 05:33 PM
10. ### (cosx^2)/x=cosx true or false. Explain.

• Replies: 1
• Views: 887
Aug 23rd 2011, 05:40 PM
11. ### Trigonomic Equations

• Replies: 17
• Views: 1,135
Aug 23rd 2011, 02:09 PM
12. ### Finding the lengths and sides of a kite

• Replies: 4
• Views: 4,549
Aug 21st 2011, 10:53 PM
13. ### Understanding which trig signs to use

• Replies: 12
• Views: 751
Aug 21st 2011, 06:19 AM
14. ### Proving Questions leading to 'Hence' solve for x

• Replies: 2
• Views: 561
Aug 20th 2011, 08:40 AM
15. ### [SOLVED] problem solving basic tan equation!

• Replies: 5
• Views: 623
Aug 20th 2011, 04:23 AM
16. ### Calculating an angle of a none right angle triangle

• Replies: 14
• Views: 1,189
Aug 19th 2011, 01:42 PM
17. ### Inverse functions and substitution

• Replies: 17
• Views: 1,463
Aug 19th 2011, 09:40 AM
18. ### (tan x)^2 = sin 2x

• Replies: 9
• Views: 1,554
Aug 19th 2011, 09:35 AM
19. ### Solve Rotation-Type Matrix Problem

• Replies: 1
• Views: 710
Aug 19th 2011, 05:27 AM
20. ### Help me solve for x?

• Replies: 1
• Views: 450
Aug 18th 2011, 01:37 PM

• Replies: 14
• Views: 652
Aug 16th 2011, 08:06 AM
22. ### Finding value of x

• Replies: 1
• Views: 403
Aug 14th 2011, 03:51 PM
23. ### trouble with Cosine Rule

• Replies: 4
• Views: 494
Aug 14th 2011, 02:31 PM
24. ### Inverse trig functions and implied domains

• Replies: 5
• Views: 1,271
Aug 14th 2011, 04:10 AM

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