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# Trigonometry Forum

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

1. ### [SOLVED] # of solutions for triangles

• Replies: 6
• Views: 8,990
Jan 11th 2012, 10:38 PM
2. ### θ is Acute?

• Replies: 4
• Views: 556
Apr 11th 2010, 04:24 AM
3. ### [SOLVED] "Give any three of the criteria that go into selecting the range."

• Replies: 3
• Views: 936
Jul 21st 2010, 08:15 PM
4. ### "Prove that" question

• Replies: 1
• Views: 387
Feb 27th 2014, 08:30 AM
5. ### "Real" Example of a Sine Wave or Cosine Wave. Need HELP FAST!!!

• Replies: 2
• Views: 950
Nov 6th 2007, 01:05 PM
6. ### "simple" math question

• Replies: 3
• Views: 664
Feb 4th 2010, 01:09 PM
7. ### 'r' method

• Replies: 8
• Views: 531
May 10th 2009, 02:21 AM
8. ### 'Real word' Trig Question

• Replies: 2
• Views: 772
Jun 9th 2009, 10:13 AM
9. ### ((1+sinx+icosx)/(1+sinx-icos))^n

• Replies: 5
• Views: 6,294
Nov 28th 2011, 08:06 PM
10. ### (1+tan 1)(1+tan 2).....(1+tan 45)=

• Replies: 2
• Views: 2,671
Oct 22nd 2011, 07:48 AM
11. ### (2cos(x/2)sin(x/2))/2cos^2(x/2)

• Replies: 1
• Views: 735
Dec 13th 2011, 08:25 AM
12. ### (3sin20+5cos70)/2sin20= ?

• Replies: 1
• Views: 923
Apr 21st 2010, 01:47 AM
13. ### (a) "Evaluate h(t) = cos (20t)° for t = 3." (b) What is the value of t when h(t) =...

• Replies: 1
• Views: 786
Apr 28th 2012, 02:12 PM
14. ### (cosx^2)/x=cosx true or false. Explain.

• Replies: 1
• Views: 992
Aug 23rd 2011, 06:40 PM
15. ### (cos^2x-sin^2x)/cos^2x+sinxcosx=1-tanx

• Replies: 4
• Views: 5,545
Apr 6th 2009, 09:19 AM
16. ### (simple) trigonometric equation

• Replies: 2
• Views: 522
May 23rd 2012, 09:33 AM
17. ### (tan x)^2 = sin 2x

• Replies: 9
• Views: 1,951
Aug 19th 2011, 10:35 AM
18. ### ..a little help in my review sheet for test

• Replies: 1
• Views: 1,089
Nov 13th 2006, 05:50 AM
19. ### 1 Last question Guys

• Replies: 17
• Views: 1,502
Nov 22nd 2006, 05:10 AM
20. ### 1 other Trig Problem

• Replies: 5
• Views: 686
Nov 20th 2006, 12:43 PM
21. ### 1 problem

• Replies: 1
• Views: 573
May 13th 2009, 02:01 PM

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# trigonometry sotr

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