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# Forum: Trigonometry

Trigonometric Functions, Trigonometric Identities, etc.

2. ### Usage of the Rearrangement Inequality in a trigonometric expression

• Replies: 0
• Views: 103
March 20th, 2017, 17:07
3. ### Cos trig identity

• Replies: 1
• Views: 85
March 7th, 2017, 09:05
4. ### Trig Identity problem

• Replies: 9
• Views: 212
March 2nd, 2017, 07:58
5. ### Rotation Formula

• Replies: 2
• Views: 120
February 25th, 2017, 21:33
6. ### [SOLVED] Trigonometric simplification

• Replies: 2
• Views: 208
January 22nd, 2017, 07:29
7. ### "Bearing" question - finding distance between two objects

• Replies: 1
• Views: 118
January 16th, 2017, 11:21
8. ### Prove that sin(x)+cos(x) is equal or larger than 1

• Replies: 11
• Views: 549
January 15th, 2017, 13:44
9. ### Finding distances to the frisbee

• Replies: 3
• Views: 822
December 29th, 2016, 11:17
10. ### Graphing trig function

• Replies: 1
• Views: 163
December 18th, 2016, 04:11
11. ### Simplifying A trig equation

• Replies: 1
• Views: 171
November 20th, 2016, 17:33
12. ### Trigonometric identities

• Replies: 6
• Views: 376
November 16th, 2016, 14:10
13. ### trigonometric equation

• Replies: 6
• Views: 334
November 16th, 2016, 04:21
14. ### Trignometric identities

• Replies: 2
• Views: 165
November 14th, 2016, 21:39
15. ### Equation involving the inverse tangent function

• Replies: 2
• Views: 180
November 12th, 2016, 16:54
16. ### Find the exact value of each of the remaining trigonometric functions of theta

• Replies: 1
• Views: 245
November 8th, 2016, 06:19
17. ### [SOLVED] tangent transformations

• Replies: 2
• Views: 195
November 4th, 2016, 00:36
18. ### Equations that result in quadratics in some trigonometric function

• Replies: 2
• Views: 229
October 30th, 2016, 19:06
19. ### Trigonometric inequality with pi

• Replies: 4
• Views: 220
October 24th, 2016, 14:38
20. ### Trigonometric inequation with tangent function

• Replies: 0
• Views: 143
October 24th, 2016, 02:52
21. ### don't think there is a solution

• Replies: 4
• Views: 338
October 2nd, 2016, 15:34
22. ### Show how to solve this trig question?

• Replies: 1
• Views: 276
September 24th, 2016, 21:33
23. ### Trigonometric identity

• Replies: 2
• Views: 256
September 21st, 2016, 21:11
24. ### home work help: proving a trigonometric identity

• Replies: 4
• Views: 255
September 17th, 2016, 18:13
25. ### [SOLVED] Find cos theta and tan theta using sin theta

• Replies: 4
• Views: 511
August 14th, 2016, 08:16
26. ### Trigonometric equation

• Replies: 4
• Views: 445
August 2nd, 2016, 01:32

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