Trigonometry Forum

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: 12
    • Views: 5,374
    jpompey
    Feb 23rd 2017, 09:35 AM Go to last post

  1. Need trig help?

    Kristinkafka
    cosine, math models, sine, trig, trigonometry
    • Replies: 6
    • Views: 596
    skeeter
    Jul 1st 2016, 01:16 PM Go to last post

  2. Triangle with Angle,Side,Ratio known

    xynon
    angle, ratio, triangle 1 Attachment(s)
    • Replies: 2
    • Views: 434
    DenisB
    Jun 28th 2016, 11:21 AM Go to last post

  3. triangle inscribed in a semi-circle

    provasanteriores
    inscribed, semicircle, triangle 1 Attachment(s)
    • Replies: 12
    • Views: 452
    Idea
    Jun 24th 2016, 09:42 PM Go to last post

  4. Trigonometric Formula

    Crelicx
    formula, trigonometric
    • Replies: 3
    • Views: 473
    skeeter
    Jun 17th 2016, 03:52 AM Go to last post

  5. hot air balloon problem

    moto468
    air, balloon, hot, problem 1 Attachment(s)
    • Replies: 1
    • Views: 474
    skeeter
    Jun 16th 2016, 01:45 PM Go to last post

  6. Unhappy Pre-calc/Trig help!!

    alpacasoul
    precalc or trig, trig anxiety attack., trig function, trig help math, trig identity help
    • Replies: 4
    • Views: 383
    Debsta
    Jun 15th 2016, 02:20 AM Go to last post

  7. 8*cosA*cosB*CosC

    blue_blue
    8cosacosbcosc
    • Replies: 8
    • Views: 6,264
    PowerofPoint
    Jun 10th 2016, 03:22 AM Go to last post

  8. trigonometric

    kastamonu
    trigonometric
    • Replies: 1
    • Views: 324
    skeeter
    Jun 4th 2016, 04:00 AM Go to last post

  9. Question Help with this angles

    beynd
    angles
    • Replies: 0
    • Views: 309
    beynd
    Jun 3rd 2016, 11:47 AM Go to last post

  10. trigonometric equation

    Isa16
    equation, trigonometric
    • Replies: 1
    • Views: 390
    chiro
    May 29th 2016, 11:01 PM Go to last post

  11. What is this odd looking symbol I found in my 10th ed.lial and hornsby trig book?

    urmoots
    10th, book, edlial, greek letter, hornsby, non-greek symbol?, odd, odd symbol, symbol, trig, trigonometry, weird symbol 2 Attachment(s)
    • Replies: 7
    • Views: 464
    HallsofIvy
    May 28th 2016, 11:09 AM Go to last post

  12. Cool Making concise function to amplify controller input

    Base16
    amplify, concise, controller, function, input, making
    • Replies: 2
    • Views: 356
    Base16
    May 25th 2016, 07:15 PM Go to last post

  13. trigonom. functions simult. eq

    mathslover1234
    functions, simult, trigonom
    • Replies: 1
    • Views: 320
    skeeter
    May 25th 2016, 07:32 AM Go to last post

  14. Prove Identity

    ybiotp
    identity, prove 1 Attachment(s)
    • Replies: 3
    • Views: 349
    ybiotp
    May 16th 2016, 12:46 PM Go to last post

  15. Trig Problem Solving question

    iamdylan123
    2 Pages •
    1 2
    problem, question, solving, trig 2 Attachment(s)
    • Replies: 15
    • Views: 4,258
    DenisB
    May 9th 2016, 08:06 PM Go to last post

  16. Trig angle Formulas

    carich4
    angle, formulas, trig
    • Replies: 1
    • Views: 349
    skeeter
    May 9th 2016, 12:41 PM Go to last post

  17. Question Sum and difference identities help?

    bestgio
    difference, identities, sum 1 Attachment(s)
    • Replies: 4
    • Views: 416
    romsek
    May 6th 2016, 02:57 PM Go to last post

  18. Perpendiculars are drawn from angles A, B, C of an acute angled triangle...

    cooldudeachyut
    acute, angled, angles, drawn, perpendiculars, triangle
    • Replies: 2
    • Views: 504
    cooldudeachyut
    May 3rd 2016, 11:23 PM Go to last post

  19. Angry cos x + sin x = 2x

    Bronocchio
    cos, precalc, sin, trig 1 Attachment(s)
    • Replies: 5
    • Views: 470
    romsek
    May 3rd 2016, 05:24 PM Go to last post

  20. Combining Phasors (Wave Forms)

    mrdannydandan
    combining, forms, phasors, wave 1 Attachment(s)
    • Replies: 2
    • Views: 432
    mrdannydandan
    May 3rd 2016, 06:38 AM Go to last post

  21. All about Vectors

    kelumsd
    trigonometry, vector, vectors
    • Replies: 1
    • Views: 346
    Plato
    Apr 28th 2016, 05:44 AM Go to last post

  22. Trigonometry

    uwadiajude
    trigonometry
    • Replies: 2
    • Views: 395
    DenisB
    Apr 24th 2016, 12:50 PM Go to last post

  23. Angel into centimeter conversion

    toddle
    angel, centimeter, conversion 1 Attachment(s)
    • Replies: 8
    • Views: 427
    toddle
    Apr 23rd 2016, 01:23 PM Go to last post

  24. Trig Product and Sum Help

    Barry1234
    product, sum, trig
    • Replies: 9
    • Views: 446
    Barry1234
    Apr 21st 2016, 12:12 AM Go to last post

  25. Question If 0<a,b<π and cos(a) + cos(b) - cos(a+b) = 3/2 then show that a=b=π/3

    cooldudeachyut
    0&lta, 3 or 2, abπ or 3, b<π, cosa, cosb
    • Replies: 7
    • Views: 1,035
    cooldudeachyut
    Apr 20th 2016, 05:08 PM Go to last post

  26. Question Sin5a = cos2a

    cooldudeachyut
    cos2a, sin5a 1 Attachment(s)
    • Replies: 2
    • Views: 754
    cooldudeachyut
    Apr 17th 2016, 08:53 PM Go to last post

  27. Question How to prove(show) this?

    cooldudeachyut
    proveshow
    • Replies: 4
    • Views: 488
    cooldudeachyut
    Apr 16th 2016, 07:24 AM Go to last post

  28. Cosines law, 2x

    Boss
    cosines, law, triangle, trigonometry 2 Attachment(s)
    • Replies: 3
    • Views: 351
    Boss
    Apr 11th 2016, 03:25 AM Go to last post

  29. tan[arctan(3pi)]

    math951
    tanarctan3pi
    • Replies: 2
    • Views: 515
    skeeter
    Apr 11th 2016, 01:41 AM Go to last post

  30. Questions about vectors.

    math951
    questions, vectors
    • Replies: 1
    • Views: 347
    romsek
    Apr 10th 2016, 10:18 PM Go to last post

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