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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: 1,591
    LandSurveyor01
    February 14th 2013, 03:34 AM Go to last post
  2.   Discussions  

  1. [SOLVED] How can i show this, trig identity

    maths900
    identity, solved, trig
    • Replies: 6
    • Views: 148
    maths900
    February 15th 2009, 06:43 AM Go to last post

  2. [SOLVED] How can i show this...trig identities??

    maths900
    identities, solved, thistrig
    • Replies: 5
    • Views: 191
    maths900
    February 15th 2009, 05:48 AM Go to last post

  3. Trigonometric function equal to one another

    chrozer
    equal, function, trigonometric
    • Replies: 3
    • Views: 177
    Mush
    February 14th 2009, 03:48 PM Go to last post

  4. Solving Trigonometric Equations

    chrozer
    equations, solving, trigonometric
    • Replies: 2
    • Views: 193
    chrozer
    February 14th 2009, 01:21 PM Go to last post

  5. Red face Prove identities, can anyone help?

    joemc22
    identities, prove
    • Replies: 3
    • Views: 324
    Grandad
    February 14th 2009, 01:04 PM Go to last post

  6. trig inequality

    Slipery
    inequality, trig 1 Attachment(s)
    • Replies: 4
    • Views: 208
    Slipery
    February 14th 2009, 06:51 AM Go to last post

  7. Complex Numbers

    kayne
    complex, numbers
    • Replies: 3
    • Views: 365
    HallsofIvy
    February 13th 2009, 06:14 AM Go to last post

  8. simplify

    guardofthecolor4ever
    simplify
    • Replies: 3
    • Views: 186
    skeeter
    February 12th 2009, 01:54 PM Go to last post

  9. How do I simplify these things?!

    j0nath0n3
    simplify, things
    • Replies: 4
    • Views: 203
    MarcoMP
    February 12th 2009, 09:18 AM Go to last post

  10. Solving the triangle

    Shady97342
    solving, triangle
    • Replies: 1
    • Views: 157
    j0nath0n3
    February 11th 2009, 03:09 PM Go to last post

  11. Angry Trigonometry Question

    raj1985
    question, trigonometry
    • Replies: 1
    • Views: 223
    Soroban
    February 11th 2009, 12:05 PM Go to last post

  12. Basic trig bearing problem

    Ruscur
    basic, bearing, problem, trig
    • Replies: 2
    • Views: 1,737
    Soroban
    February 11th 2009, 11:20 AM Go to last post

  13. Red face find the exact value: cos[sin^-1(2/8)]

    sarabara
    cossin, exact
    • Replies: 2
    • Views: 338
    HallsofIvy
    February 11th 2009, 09:15 AM Go to last post

  14. 2cosēθ+6cosθ=3

    sarabara
    2cosēθ, 6cos┳
    • Replies: 1
    • Views: 176
    mathaddict
    February 11th 2009, 02:05 AM Go to last post

  15. please solve: √3 times cotθ+1=0

    sarabara
    cotθ, solve, times
    • Replies: 1
    • Views: 190
    mathaddict
    February 11th 2009, 02:03 AM Go to last post

  16. 2secēθ-7=0

    sarabara
    2secē𗐦
    • Replies: 2
    • Views: 130
    geld
    February 11th 2009, 01:57 AM Go to last post

  17. tanēθ=-tanθ+3

    sarabara
    tanēθtanθ
    • Replies: 2
    • Views: 166
    mathaddict
    February 11th 2009, 01:36 AM Go to last post

  18. Prove that (cscx - cotx)^2 = (1-cosx)/(1+cosx)

    Random-Hero-
    1cosx or 1, cosx, cotx2, cscx, prove
    • Replies: 1
    • Views: 1,347
    Jhevon
    February 10th 2009, 08:02 PM Go to last post

  19. Talking [SOLVED] How do I find tan?

    RaphaelB30
    solved, tan
    • Replies: 9
    • Views: 207
    RaphaelB30
    February 10th 2009, 04:00 PM Go to last post

  20. [SOLVED] simple trigonometric equation

    db5vry
    equation, simple, solved, trigonometric
    • Replies: 1
    • Views: 188
    Soroban
    February 10th 2009, 02:23 PM Go to last post

  21. Question Simple sinx...

    VadimT
    simple, sinx
    • Replies: 1
    • Views: 168
    running-gag
    February 10th 2009, 11:09 AM Go to last post

  22. I bet you will not know this trig question part two

    gilzean
    bet, question, trig
    • Replies: 1
    • Views: 156
    red_dog
    February 10th 2009, 11:06 AM Go to last post

  23. I bet you will not know this question

    gilzean
    bet, question
    • Replies: 2
    • Views: 166
    earboth
    February 10th 2009, 10:54 AM Go to last post

  24. Trig Identities and Proofs

    Purpledog100
    identities, proofs, trig
    • Replies: 1
    • Views: 168
    galactus
    February 10th 2009, 08:43 AM Go to last post

  25. Simplify the following in terms of sin or cos

    mj.alawami
    cos, simplify, sin, terms
    • Replies: 6
    • Views: 463
    mj.alawami
    February 10th 2009, 08:32 AM Go to last post

  26. Angry [SOLVED] Cosine rule 2

    xch3m_is_l0v3x
    cosine, cosine rule 2, rule, solved
    • Replies: 2
    • Views: 198
    Soroban
    February 10th 2009, 04:38 AM Go to last post

  27. Tricky Trig Task

    jamm89
    task, tricky, trig 1 Attachment(s)
    • Replies: 1
    • Views: 238
    earboth
    February 10th 2009, 12:39 AM Go to last post

  28. Given sinx=4/5, cosy=7/25 find the following.

    Random-Hero-
    cosy7 or 25, sinx4 or 5
    • Replies: 2
    • Views: 264
    Grandad
    February 10th 2009, 12:38 AM Go to last post

  29. Sum and difference identities

    mj.alawami
    difference, identities, sum
    • Replies: 1
    • Views: 148
    mollymcf2009
    February 9th 2009, 07:59 PM Go to last post

  30. Finding the diagonals of a isosceles trapezoid? (last question I swear)

    SarahGr
    diagonals, finding, isosceles, question, swear, trapezoid
    • Replies: 4
    • Views: 2,119
    SarahGr
    February 9th 2009, 07:36 PM Go to last post

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