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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: 1,593
    LandSurveyor01
    February 14th 2013, 03:34 AM Go to last post
  2.   Discussions  

  1. Show that cot(A)=(1+sin(2A)+cos(2A))/(1+sin(2A)-cos(2A))

    juanma101285
    cos2a or 1, cota1, sin2a, sin2acos2a
    • Replies: 1
    • Views: 304
    e^(i*pi)
    October 18th 2011, 09:31 AM Go to last post

  2. The product of sines and the product of cosines of (k\pi)/(2n+1) for 0<k<n+1

    ymar
    0&ltk&ltn, cosines, kpi or 2n, product, sines
    • Replies: 3
    • Views: 254
    Opalg
    October 18th 2011, 04:40 AM Go to last post

  3. trig problem

    dazedandmathfused
    problem, trig
    • Replies: 3
    • Views: 135
    SammyS
    October 17th 2011, 10:05 PM Go to last post

  4. Working with angles

    user001
    angles, working
    • Replies: 3
    • Views: 625
    skeeter
    October 17th 2011, 02:32 PM Go to last post

  5. [SOLVED] Trig equation problem

    FelixHelix
    • Replies: 8
    • Views: 171
    Quacky
    October 17th 2011, 01:03 PM Go to last post

  6. How to solve the equation: 13sin^2 x + 12sinx-1=0

    leketapis
    12sinx10, 13sin2, equation, solve
    • Replies: 5
    • Views: 169
    TheChaz
    October 17th 2011, 08:02 AM Go to last post

  7. [SOLVED] Compound trig problem and general solutions

    FelixHelix
    • Replies: 5
    • Views: 193
    e^(i*pi)
    October 17th 2011, 03:11 AM Go to last post

  8. Graphing Trig Functions

    Manni
    functions, graphing, trig
    • Replies: 2
    • Views: 132
    Deveno
    October 17th 2011, 12:15 AM Go to last post

  9. unit length unit rise ratio

    pza
    length, ratio, rise, unit
    • Replies: 6
    • Views: 387
    pza
    October 16th 2011, 08:45 PM Go to last post

  10. Inverse Trig Ratios

    Manni
    inverse, ratios, trig
    • Replies: 4
    • Views: 141
    Manni
    October 16th 2011, 08:13 PM Go to last post

  11. Help with Trig problem

    user001
    problem, trig
    • Replies: 1
    • Views: 185
    skeeter
    October 16th 2011, 02:25 PM Go to last post

  12. Too Many Solutions: tan x = 3 sin x

    HumanShale
    sin, solutions, tan
    • Replies: 5
    • Views: 398
    HumanShale
    October 16th 2011, 02:11 AM Go to last post

  13. Cool How to find point of interesection between sin x and sin 0.5x?

    sorkii
    05x, interesection, point, sin
    • Replies: 2
    • Views: 369
    Soroban
    October 15th 2011, 05:11 PM Go to last post

  14. Graphing trig functions such as sinx+x

    elieh
    functions, graphing, sinx, trig
    • Replies: 3
    • Views: 190
    sbhatnagar
    October 14th 2011, 04:14 AM Go to last post

  15. Arc values not on the unit circle

    Nervous
    arc, circle, unit, values
    • Replies: 4
    • Views: 303
    Nervous
    October 13th 2011, 12:59 PM Go to last post

  16. okay the last verify problem i have problems with

    dazedandmathfused
    problem, problems, verify
    • Replies: 1
    • Views: 235
    Prove It
    October 12th 2011, 08:34 PM Go to last post

  17. [SOLVED] another trig id problem

    dazedandmathfused
    • Replies: 2
    • Views: 139
    dazedandmathfused
    October 12th 2011, 06:08 PM Go to last post

  18. [SOLVED] trig identities

    dazedandmathfused
    • Replies: 0
    • Views: 114
    dazedandmathfused
    October 12th 2011, 05:31 PM Go to last post

  19. Calculate tan^2(36) tan^2(72)

    afrim1
    calculate, tan236, tan272
    • Replies: 12
    • Views: 864
    BookEnquiry
    October 11th 2011, 06:06 AM Go to last post

  20. tanθ = -2, θ = ?

    s3a
    θ, tanθ
    • Replies: 10
    • Views: 334
    Prove It
    October 10th 2011, 06:15 PM Go to last post

  21. Solve for tan

    Manni
    solve, tan
    • Replies: 1
    • Views: 121
    skeeter
    October 10th 2011, 04:26 PM Go to last post

  22. Simplify cos ( tan^-1 (1/4) )

    IneeedHelp
    1 or 4, cos, simplify, tan1
    • Replies: 7
    • Views: 160
    TKHunny
    October 9th 2011, 09:00 PM Go to last post

  23. [SOLVED] help needed with trigonometric identities

    Aristotle12
    • Replies: 1
    • Views: 147
    Aristotle12
    October 9th 2011, 08:44 PM Go to last post

  24. Solve 2pi = 6 cos^-1 (3x)

    IneeedHelp
    2pi, cos1, solve
    • Replies: 6
    • Views: 163
    IneeedHelp
    October 9th 2011, 08:02 PM Go to last post

  25. Sketching A Graph

    Manni
    graph, sketching 1 Attachment(s)
    • Replies: 3
    • Views: 189
    skeeter
    October 9th 2011, 10:50 AM Go to last post

  26. Modelling Blood Pressure

    Manni
    blood, modelling, pressure
    • Replies: 2
    • Views: 271
    Manni
    October 9th 2011, 09:55 AM Go to last post

  27. Post Find Exact Value of SinB

    JohnTerry
    2 Pages •
    1 2
    exact, sinb
    • Replies: 17
    • Views: 563
    mr fantastic
    October 8th 2011, 01:32 PM Go to last post

  28. Find tan knowing sin-cos

    markjonathan
    knowing, sincos, tan
    • Replies: 6
    • Views: 167
    Deveno
    October 8th 2011, 06:16 AM Go to last post

  29. similar triangles...

    slapmaxwell1
    similar, triangles
    • Replies: 3
    • Views: 146
    pickslides
    October 6th 2011, 06:43 PM Go to last post

  30. Are these trigonometric functions even or odd?

    essedra
    functions, odd, trigonometric
    • Replies: 7
    • Views: 159
    essedra
    October 6th 2011, 03:35 PM Go to last post

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