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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: 1,588
    LandSurveyor01
    February 14th 2013, 03:34 AM Go to last post
  2.   Discussions  

  1. Simplify trig expression

    johnsy123
    expression, simplify, trig
    • Replies: 3
    • Views: 204
    Prove It
    May 18th 2011, 02:12 PM Go to last post

  2. Find sine function through two points.

    ninasukkah
    function, points, sine
    • Replies: 6
    • Views: 1,671
    Soroban
    May 17th 2011, 08:06 PM Go to last post

  3. Stuck in this trigonometric equation...

    klik11
    equation, stuck, trigonometric
    • Replies: 7
    • Views: 152
    TheEmptySet
    May 17th 2011, 09:44 AM Go to last post

  4. trig identity help...

    katiethegreat
    identity, trig
    • Replies: 5
    • Views: 155
    masters
    May 17th 2011, 09:43 AM Go to last post

  5. Cosine Summation Identity

    ralphjason007
    cosine, identity, summation
    • Replies: 2
    • Views: 437
    red_dog
    May 17th 2011, 07:52 AM Go to last post

  6. number of solutions within 360 degrees

    furor celtica
    360, degrees, number, solutions
    • Replies: 2
    • Views: 114
    furor celtica
    May 17th 2011, 05:53 AM Go to last post

  7. Solving Trigonometric Equation

    trigzyo
    equation, solving, trigonometric
    • Replies: 4
    • Views: 351
    Sudharaka
    May 17th 2011, 01:20 AM Go to last post

  8. getting wrong theta from tan(theta)=-4/3

    yvonnehr
    tantheta4 or 3, theta, wrong
    • Replies: 3
    • Views: 524
    yvonnehr
    May 16th 2011, 09:21 AM Go to last post

  9. sin(x*PI/180) ~ 0.17...

    notorious
    017, sinxpi or 180
    • Replies: 2
    • Views: 341
    notorious
    May 15th 2011, 06:20 PM Go to last post

  10. Unhappy Find solutions of an equation within an interval

    root
    equation, interval, solutions
    • Replies: 2
    • Views: 197
    root
    May 15th 2011, 12:35 PM Go to last post

  11. Trigonometric Equation

    HighlyFlammable
    equation, trigonometric
    • Replies: 3
    • Views: 197
    Sudharaka
    May 15th 2011, 07:00 AM Go to last post

  12. Trigonometry Function Help

    buddah
    function, trigonometry
    • Replies: 6
    • Views: 219
    Quacky
    May 14th 2011, 06:05 PM Go to last post

  13. Moved: How to do a Summation

    PapaSmurf
    summation
    •  
    •  

  14. Calculating the acute angle between OX and the tangent to a curve.

    MAX1592
    acute, angle, calculating, curve, tangent
    • Replies: 1
    • Views: 265
    Plato
    May 13th 2011, 07:44 AM Go to last post

  15. Prove Id

    reallylongnickname
    prove
    • Replies: 2
    • Views: 187
    reallylongnickname
    May 12th 2011, 06:33 PM Go to last post

  16. Value of sec^2 x

    Googl
    sec2
    • Replies: 2
    • Views: 249
    HallsofIvy
    May 12th 2011, 10:16 AM Go to last post

  17. Circular motion.

    zthsrt8
    circular, motion
    • Replies: 1
    • Views: 138
    TKHunny
    May 11th 2011, 08:26 PM Go to last post

  18. Solving for x in a trigonometric equation.

    music2283
    equation, solving, trigonometric
    • Replies: 2
    • Views: 135
    music2283
    May 11th 2011, 01:15 PM Go to last post

  19. Tangent...Help please

    domenfrandolic
    tangenthelp
    • Replies: 3
    • Views: 151
    Soroban
    May 11th 2011, 04:53 AM Go to last post

  20. Find theta as a function of phi

    fysikbengt
    function, phi, theta
    • Replies: 2
    • Views: 258
    fysikbengt
    May 11th 2011, 04:00 AM Go to last post

  21. Solving a Trigonometric Equation

    bakchormee
    equation, solving, trigonometric
    • Replies: 8
    • Views: 240
    bakchormee
    May 10th 2011, 09:51 PM Go to last post

  22. How can I prove that tan(angle) = opposite/adjacent

    jlzuri
    opposite or adjacent, prove, tanangle, tangent tan
    • Replies: 5
    • Views: 438
    HallsofIvy
    May 10th 2011, 09:09 AM Go to last post

  23. Calculate the times where two waveforms cross

    davet101
    calculate, cross, times, waveforms
    • Replies: 6
    • Views: 282
    davet101
    May 8th 2011, 09:52 AM Go to last post

  24. Equation Solving

    HighlyFlammable
    equation, solving
    • Replies: 4
    • Views: 132
    e^(i*pi)
    May 8th 2011, 06:09 AM Go to last post

  25. Prove that cos is a rational number

    andtom
    cos, number, prove, rational
    • Replies: 1
    • Views: 259
    Prove It
    May 6th 2011, 12:22 AM Go to last post

  26. What is the value of (tan5)(tan25)(tan45)(tan65)(tan85)?

    raed
    tan5tan25tan45tan65tan85
    • Replies: 1
    • Views: 395
    Opalg
    May 5th 2011, 11:48 AM Go to last post

  27. trig proof

    andtom
    proof, trig
    • Replies: 6
    • Views: 229
    andtom
    May 5th 2011, 06:44 AM Go to last post

  28. Verifying Trigonomic Identities

    school420
    identities, trigonomic, verifying
    • Replies: 2
    • Views: 185
    school420
    May 4th 2011, 08:07 PM Go to last post

  29. Help verifying trig identities

    sam1219
    identities, trig, verifying
    • Replies: 4
    • Views: 229
    sam1219
    May 4th 2011, 06:27 PM Go to last post

  30. The problem of the ladder!

    uruleo
    ladder, problem 1 Attachment(s)
    • Replies: 4
    • Views: 337
    uruleo
    May 3rd 2011, 06:51 PM Go to last post

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