# Trigonometry Forum

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

1. ### Prove the following identities

• Replies: 6
• Views: 1,213
Apr 26th 2013, 11:06 PM
2. ### Determine all the possible value of x where 0 deg <= x <= 360 deg.

• Replies: 3
• Views: 1,184
Apr 26th 2013, 02:03 AM
3. ### Demonstrate Period of trigonometric functions?

• Replies: 1
• Views: 833
Apr 25th 2013, 12:16 PM
4. ### Not sure what to do with this problem (First post, by the way, Hi :)).

• Replies: 2
• Views: 632
Apr 24th 2013, 08:56 AM
5. ### Trig equations

• Replies: 2
• Views: 427
Apr 22nd 2013, 07:01 AM
6. ### Help with trigonometric graph

• Replies: 1
• Views: 650
Apr 21st 2013, 07:46 PM
7. ### Need help solving this equation −sin (2θ) − cos (4θ) = 0

• Replies: 1
• Views: 2,118
Apr 20th 2013, 05:46 PM
8. ### how to sketch a graph of the product of two trig identities?

• Replies: 2
• Views: 661
Apr 20th 2013, 04:45 AM
9. ### lowering powers help please

• Replies: 1
• Views: 1,271
Apr 17th 2013, 05:51 AM
10. ### I need help evaluating an expression under specific conditions

• Replies: 8
• Views: 6,021
Apr 16th 2013, 11:31 PM

• Replies: 3
• Views: 467
Apr 16th 2013, 12:31 AM
12. ### Infinite Geometric series simple question

• Replies: 5
• Views: 2,409
Apr 16th 2013, 12:30 AM
13. ### trigonometric inequation

• Replies: 2
• Views: 458
Apr 16th 2013, 12:29 AM
14. ### Exact Values and Trigonometric Equations

• Replies: 4
• Views: 407
Apr 15th 2013, 07:05 PM
15. ### help w/ trig equation

• Replies: 3
• Views: 422
Apr 14th 2013, 08:26 PM
16. ### Trouble finding reference angles with radians

• Replies: 10
• Views: 3,749
Apr 14th 2013, 11:55 AM
17. ### Need help solving trig Identity

• Replies: 4
• Views: 436
Apr 11th 2013, 01:32 AM
18. ### Need help simplifying this trigonometric substitution problem on homework.

• Replies: 2
• Views: 1,878
Apr 10th 2013, 04:18 PM
19. ### How to find angle z ?

• Replies: 1
• Views: 452
Apr 10th 2013, 08:35 AM
20. ### Inverse Trig Functions help

• Replies: 2
• Views: 997
Apr 9th 2013, 10:44 AM

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