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Forum: Trigonometry

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

  1. Sticky Thread   Trigonometry to Memorize, and Trigonometry to Derive

    Ackbeet
    derive, memorize, trigonometry 1 Attachment(s)
    • Replies: 8
    • Views: 1,640
    LandSurveyor01
    February 14th 2013, 03:34 AM Go to last post
  2.   Discussions  

  1. Why is cos pi = -1?

    D. Martin
    cos
    • Replies: 2
    • Views: 34,204
    ticbol
    September 11th 2008, 06:05 PM Go to last post

  2. exact values.. sin, cos, tan, cot, csc, sec...

    trae
    cos, cot, csc, exact, sec, sin, tan, values
    • Replies: 1
    • Views: 10,326
    Moo
    May 5th 2008, 01:24 PM Go to last post

  3. Trigonometry: bearing problems

    aikenfan
    bearing, problems, trigonometry
    • Replies: 3
    • Views: 9,527
    Soroban
    October 30th 2007, 07:38 PM Go to last post

  4. [SOLVED] [SOLVED] Law of Sines/Cosine Word Problems

    robgoatse
    3 Attachment(s)
    • Replies: 3
    • Views: 9,476
    earboth
    May 24th 2006, 09:50 PM Go to last post

  5. Soh Cah Toa help

    mattballer082
    cah, soh, toa
    • Replies: 3
    • Views: 9,026
    rgep
    July 7th 2005, 10:31 PM Go to last post

  6. Exclamation Rationalizing a Denominator

    peachgal
    denominator, rationalizing
    • Replies: 1
    • Views: 8,285
    topsquark
    December 14th 2007, 08:44 AM Go to last post

  7. cosx-sinx

    hoops2008
    cosxsinx
    • Replies: 3
    • Views: 7,958
    hoops2008
    July 29th 2008, 01:26 PM Go to last post

  8. Simplifying Trigonometric Expressions

    topher0805
    expressions, simplifying, trigonometric
    • Replies: 13
    • Views: 7,758
    Jhevon
    January 16th 2008, 09:51 PM Go to last post

  9. how to convert decimal to fraction on calculator?

    algebra2
    calculator, convert, decimal, fraction
    • Replies: 5
    • Views: 7,064
    Jhevon
    February 3rd 2008, 05:01 PM Go to last post

  10. finding angles using bearings

    boonies
    angles, bearings, finding 1 Attachment(s)
    • Replies: 1
    • Views: 6,740
    earboth
    February 27th 2008, 09:57 PM Go to last post

  11. Complementary Angle Theorem

    spiritualfields
    angle, complementary, theorem 1 Attachment(s)
    • Replies: 5
    • Views: 6,541
    earboth
    August 7th 2006, 01:38 AM Go to last post

  12. Finding the radius with just the chord length and central angle :)

    Belinda
    angle, central, chord, finding, length, radius 1 Attachment(s)
    • Replies: 3
    • Views: 6,429
    Belinda
    February 17th 2007, 10:14 AM Go to last post

  13. tan(pi/8)

    a4swe
    tanpi or 8
    • Replies: 2
    • Views: 6,339
    a4swe
    October 7th 2005, 02:01 AM Go to last post

  14. Multiple choice trigonometry help pls?

    Blahdkm
    choice, multiple, pls, trigonometry 1 Attachment(s)
    • Replies: 5
    • Views: 6,255
    yeongil
    June 10th 2009, 02:46 AM Go to last post

  15. Post ArcTan(x,y) formula

    Chris147
    arctanx, formula
    • Replies: 4
    • Views: 6,159
    Chris147
    September 17th 2008, 01:38 PM Go to last post

  16. Help please: How to graph Sin x + Cos x, and Cotangent

    Quan
    cos, cotangent, graph, sin 2 Attachment(s)
    • Replies: 2
    • Views: 6,092
    ticbol
    October 26th 2007, 10:39 AM Go to last post

  17. Finding cos (pi / 5)

    sqleung
    cos, finding
    • Replies: 5
    • Views: 6,028
    Flyingdutchman65
    June 26th 2010, 07:37 PM Go to last post

  18. What is cot(x)=0

    acevipa
    cotx0
    • Replies: 1
    • Views: 6,000
    TheEmptySet
    March 28th 2008, 09:52 PM Go to last post

  19. magnitude forces/resultant/etc.

    melissaIsHere
    magnitude
    • Replies: 2
    • Views: 5,742
    mr fantastic
    July 30th 2008, 09:41 PM Go to last post

  20. Need some sort of explanation of different kinds of angles

    ~NeonFire372~
    angles, explanation, kinds, sort
    • Replies: 5
    • Views: 5,577
    TKHunny
    February 12th 2008, 04:02 PM Go to last post

  21. Question [SOLVED] [SOLVED] cos x - sin x = 1, How To Solve This?

    Questions
    • Replies: 2
    • Views: 5,309
    ticbol
    November 15th 2007, 06:23 PM Go to last post

  22. rules for sin/cos/tan/csc/sec/cot on unit circle?

    algebra2
    circle, rules, unit
    • Replies: 2
    • Views: 5,257
    colby2152
    February 28th 2008, 04:50 AM Go to last post

  23. Complement and Supplement Angles

    Justardms
    angles, complement, supplement
    • Replies: 3
    • Views: 5,239
    Justardms
    June 28th 2005, 08:07 AM Go to last post

  24. How To Use Sin, Cos or Tan?

    Astronaut
    cos, sin, tan
    • Replies: 3
    • Views: 5,143
    colby2152
    May 20th 2008, 08:53 AM Go to last post

  25. Ferris Wheel Sinusoidal problem

    CONFUSED_ONE
    ferris, problem, sinusoidal, wheel
    • Replies: 5
    • Views: 5,072
    topsquark
    January 19th 2007, 04:04 AM Go to last post

  26. Finding Amplitude and Period

    Raleigh
    amplitude, finding, period
    • Replies: 4
    • Views: 4,877
    Raleigh
    December 11th 2007, 07:25 PM Go to last post

  27. angle of depression

    algebra2
    angle, depression
    • Replies: 5
    • Views: 4,864
    Jhevon
    February 18th 2008, 03:17 PM Go to last post

  28. finding the period of an equation

    jem7vwhjt
    equation, finding, period
    • Replies: 3
    • Views: 4,763
    jem7vwhjt
    August 26th 2008, 04:22 PM Go to last post

  29. period and amplitude

    Mr_Green
    amplitude, period
    • Replies: 1
    • Views: 4,581
    earboth
    September 27th 2007, 09:52 PM Go to last post

  30. exact value of cos75, sin15, cot-210

    stones44
    cos75, cot210, exact, sin15
    • Replies: 7
    • Views: 4,470
    Plato
    May 2nd 2008, 03:55 PM Go to last post
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