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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: 1,596
    LandSurveyor01
    February 14th 2013, 03:34 AM Go to last post
  2.   Discussions  

  1. Pythagorean Triples Formula

    WinkyLozza
    formula, pythagoras, pythagorean, pythagorean triples, theory, triples
    • Replies: 3
    • Views: 572
    roninpro
    November 20th 2010, 05:49 PM Go to last post

  2. Inverse Trigonometric Functions

    browni3141
    functions, inverse, trigonometric
    • Replies: 2
    • Views: 170
    browni3141
    November 20th 2010, 12:41 PM Go to last post

  3. Which trigonometric identity do I use?

    doodofnood
    identity, trigonometric
    • Replies: 1
    • Views: 194
    TheCoffeeMachine
    November 20th 2010, 09:59 AM Go to last post

  4. Evaluate 1-2(cos^2)25/1-2(sin^2)65

    mike789
    12cos2sin265, evaluate
    • Replies: 1
    • Views: 258
    harish21
    November 20th 2010, 09:15 AM Go to last post

  5. Can't prove these identities?

    doodofnood
    identities, prove
    • Replies: 6
    • Views: 231
    harish21
    November 20th 2010, 07:07 AM Go to last post

  6. r formula visualization

    arccos
    2 Pages •
    1 2
    formula, visualization
    • Replies: 18
    • Views: 783
    arccos
    November 20th 2010, 04:37 AM Go to last post

  7. Help with hexagon area question...

    dorkymichelle
    area, hexagon, question
    • Replies: 3
    • Views: 122
    drumist
    November 18th 2010, 04:57 PM Go to last post

  8. Trig Equations

    Brndo4u
    equations, trig
    • Replies: 10
    • Views: 161
    Archie Meade
    November 18th 2010, 01:31 PM Go to last post

  9. [SOLVED] De Moivre's Theorem

    Quacky
    • Replies: 7
    • Views: 300
    Archie Meade
    November 18th 2010, 01:06 PM Go to last post

  10. Exclamation Trigonometric Identities

    Ilsa
    identities, trigonometric
    • Replies: 2
    • Views: 164
    Unknown008
    November 18th 2010, 12:09 AM Go to last post

  11. Trig triangle word problem

    dorkymichelle
    problem, triangle, trig, word
    • Replies: 1
    • Views: 179
    Unknown008
    November 17th 2010, 10:46 PM Go to last post

  12. Exclamation Trigonometric equations

    Ilsa
    equations, trigonometric
    • Replies: 5
    • Views: 192
    Ilsa
    November 17th 2010, 08:12 PM Go to last post

  13. Location of a fire

    IDontunderstand
    location
    • Replies: 1
    • Views: 318
    skeeter
    November 16th 2010, 04:10 PM Go to last post

  14. Trig identities with special triangles

    tmas
    identities, special, triangles, trig
    • Replies: 2
    • Views: 330
    Prove It
    November 15th 2010, 10:43 PM Go to last post

  15. How to solve this trig equation!

    TN17
    equation, solve, trig
    • Replies: 3
    • Views: 153
    mr fantastic
    November 15th 2010, 07:31 PM Go to last post

  16. Prove (1+cos x/1+cot x) = tan x

    tmas
    cos, cot, prove, tan, x or 1
    • Replies: 2
    • Views: 502
    sa-ri-ga-ma
    November 15th 2010, 04:16 PM Go to last post

  17. Prove that sin2x-tanx=tanXcos2X

    mike789
    prove, sin2xtanxtanxcos2x
    • Replies: 4
    • Views: 587
    arccos
    November 15th 2010, 03:45 PM Go to last post

  18. Prove Cos3x=4(cos^3)x-3cosx

    mike789
    cos3x4cos3x3cosx, prove
    • Replies: 8
    • Views: 977
    e^(i*pi)
    November 15th 2010, 11:57 AM Go to last post

  19. Inverse cotangent on calculator.

    JennyFlowers
    calculator, cotangent, inverse
    • Replies: 5
    • Views: 396
    JennyFlowers
    November 15th 2010, 10:09 AM Go to last post

  20. Proof of cos(arcsin(x))

    Dudealadude
    cosarcsinx, proof
    • Replies: 1
    • Views: 3,402
    skeeter
    November 14th 2010, 11:46 AM Go to last post

  21. Quite an easy trig identity question - need pointers

    foggynotion
    easy, identity, pointers, question, trig
    • Replies: 6
    • Views: 195
    arccos
    November 14th 2010, 06:55 AM Go to last post

  22. Solving 2 Trigo Identities

    liukawa
    identities, solving, trigo 1 Attachment(s)
    • Replies: 4
    • Views: 175
    liukawa
    November 14th 2010, 04:35 AM Go to last post

  23. Finding the amplitude

    madmax29
    amplitude, finding
    • Replies: 6
    • Views: 224
    CaptainBlack
    November 13th 2010, 08:41 PM Go to last post

  24. Solving a trigonometric equation.

    JennyFlowers
    equation, solving, trigonometric
    • Replies: 7
    • Views: 171
    Ackbeet
    November 13th 2010, 06:16 PM Go to last post

  25. Worded Trig Problem

    theleontan
    problem, trig, worded
    • Replies: 1
    • Views: 147
    Unknown008
    November 12th 2010, 10:36 PM Go to last post

  26. Word problems on trigonometric ratios.

    arccos
    problems, ratios, trigonometric, word
    • Replies: 7
    • Views: 402
    arccos
    November 12th 2010, 06:55 PM Go to last post

  27. finding solutions for cos

    madmax29
    cos, finding, solutions
    • Replies: 8
    • Views: 164
    mr fantastic
    November 12th 2010, 05:05 PM Go to last post

  28. 37 Year Old Question

    tary0901
    question, year 2 Attachment(s)
    • Replies: 2
    • Views: 431
    earboth
    November 12th 2010, 10:32 AM Go to last post

  29. Angle of projectile

    SimonCanning
    angle, projectile
    • Replies: 0
    • Views: 160
    SimonCanning
    November 11th 2010, 02:07 PM Go to last post

  30. How can I draw the graph

    ZOOZ
    draw, graph
    • Replies: 1
    • Views: 216
    mr fantastic
    November 11th 2010, 03:46 AM Go to last post

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