Trigonometry Forum

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

1. Possible to solve without guessing/graphing?

• Replies: 3
• Views: 436
Apr 28th 2013, 09:59 AM
2. trig: missing steps?

• Replies: 1
• Views: 483
Apr 27th 2013, 03:54 PM
3. Finding standard equation of an Ellipse

• Replies: 2
• Views: 369
Apr 27th 2013, 02:15 PM
4. Prove the following identities

• Replies: 6
• Views: 1,042
Apr 26th 2013, 11:06 PM
5. Determine all the possible value of x where 0 deg <= x <= 360 deg.

• Replies: 3
• Views: 1,129
Apr 26th 2013, 02:03 AM
6. Demonstrate Period of trigonometric functions?

• Replies: 1
• Views: 768
Apr 25th 2013, 12:16 PM
7. Not sure what to do with this problem (First post, by the way, Hi :)).

• Replies: 2
• Views: 585
Apr 24th 2013, 08:56 AM
8. Trig equations

• Replies: 2
• Views: 379
Apr 22nd 2013, 07:01 AM
9. Help with trigonometric graph

• Replies: 1
• Views: 519
Apr 21st 2013, 07:46 PM
10. Need help solving this equation −sin (2θ) − cos (4θ) = 0

• Replies: 1
• Views: 1,896
Apr 20th 2013, 05:46 PM
11. how to sketch a graph of the product of two trig identities?

• Replies: 2
• Views: 609
Apr 20th 2013, 04:45 AM

• Replies: 1
• Views: 1,155
Apr 17th 2013, 05:51 AM
13. I need help evaluating an expression under specific conditions

• Replies: 8
• Views: 4,816
Apr 16th 2013, 11:31 PM

• Replies: 3
• Views: 433
Apr 16th 2013, 12:31 AM
15. Infinite Geometric series simple question

• Replies: 5
• Views: 2,026
Apr 16th 2013, 12:30 AM
16. trigonometric inequation

• Replies: 2
• Views: 419
Apr 16th 2013, 12:29 AM
17. Exact Values and Trigonometric Equations

• Replies: 4
• Views: 379
Apr 15th 2013, 07:05 PM
18. help w/ trig equation

• Replies: 3
• Views: 386
Apr 14th 2013, 08:26 PM
19. Trouble finding reference angles with radians

• Replies: 10
• Views: 3,483
Apr 14th 2013, 11:55 AM
20. Need help solving trig Identity

• Replies: 4
• Views: 409
Apr 11th 2013, 01:32 AM
21. Need help simplifying this trigonometric substitution problem on homework.

• Replies: 2
• Views: 1,304
Apr 10th 2013, 04:18 PM
22. How to find angle z ?

• Replies: 1
• Views: 417
Apr 10th 2013, 08:35 AM

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"trigonometric ratios and trigonometric identities" solution

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