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Forum: Trigonometry

Trigonometric Functions, Trigonometric Identities, etc.

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  2. Solve for frequency & angle in dispersion equation

    Started by NiToNi, January 19th, 2016 10:58
    arcsin, equation, sintheta, sin[/c, solve
    • Replies: 2
    • Views: 590
    January 21st, 2016, 07:24 Go to last post
  3. Inverse trig

    Started by Guest, January 12th, 2016 03:20
    $arcsinsinfrac−3pi2$, $arcsinsinfrac−3pi2.$, $arcsinsinfrac−3pi2?$, inverse, trig
    • Replies: 1
    • Views: 398
    January 12th, 2016, 05:05 Go to last post
  4. Inverse trigonometric functions

    Started by Guest, January 10th, 2016 05:34
    $displaystyle, arccoscosfracfracpi3, functions, inverse, trigonometric
    • Replies: 4
    • Views: 478
    January 10th, 2016, 08:36 Go to last post
  5. Trig simplication

    Started by Guest, January 2nd, 2016 01:14
    arcsinsinleft11pi/5right, simplication, simplify, trig
    • Replies: 4
    • Views: 520
    January 2nd, 2016, 02:00 Go to last post
  6. Finding the measure of Triangle ABC

    Started by Mizu, July 15th, 2015 20:17
    clue, confused, continue, labeled, measure
    • Replies: 4
    • Views: 1,298
    December 13th, 2015, 04:44 Go to last post
  7. Maxima and minima of a triangle

    Started by loquetedigo, December 10th, 2015 19:20
    triangle, height, side, abc, perimeter
    • Replies: 1
    • Views: 474
    December 10th, 2015, 23:25 Go to last post
  8. rectangular to polar

    Started by karush, November 21st, 2015 04:20
    desmos, graph, plot, polar, show
    • Replies: 5
    • Views: 700
    November 21st, 2015, 22:20 Go to last post
  9. Express 3sin(3x)-4cos(3x) in the form Rcos(3x+\alpha)

    Started by ThomsonKevin, November 13th, 2015 18:07
    3sin3x-4cos3x, bit, confusing, express, form
    • Replies: 1
    • Views: 558
    November 13th, 2015, 18:26 Go to last post
  10. [SOLVED] Dc 8t14 product to sum indentity

    Started by karush, November 12th, 2015 16:59
    $fracsinleft3thetaright, $tan4pi$, expression, simplify, sum
    • Replies: 5
    • Views: 633
    November 12th, 2015, 20:06 Go to last post
  11. [SOLVED] Trig identity

    Started by karush, November 9th, 2015 18:48
    $$=fracx+y1-xy$$, $tanx+y$, formula, identity, sum
    • Replies: 2
    • Views: 527
    November 9th, 2015, 19:06 Go to last post
  12. [SOLVED] Exact value of Cos(-pi/3)

    Started by riri, November 9th, 2015 04:07
    circle, cos-pi/3, exact, exact value, inverse
    • Replies: 2
    • Views: 2,102
    November 9th, 2015, 10:10 Go to last post
  13. [SOLVED] How do we get the arccosh ?

    Started by mathmari, October 29th, 2015 16:21
    $x=arccosh, $x=arcsinh, book, frac1y$, simplify
    • Replies: 6
    • Views: 676
    October 30th, 2015, 17:18 Go to last post
  14. Trig help please!

    Started by megani, October 15th, 2015 20:44
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,401
    October 18th, 2015, 20:19 Go to last post
  15. [SOLVED] Trigonometric Identities Problem

    Started by courtbits, October 8th, 2015 10:40
    cot, find, identities, pi/4, tanpi/4
    • Replies: 4
    • Views: 775
    October 12th, 2015, 20:10 Go to last post
  16. Trig Identities Problem

    Started by courtbits, October 12th, 2015 10:59
    cospi/3=, find, frac12, secpi-pi/3, trig
    • Replies: 2
    • Views: 387
    October 12th, 2015, 13:06 Go to last post
  17. Applications to Law of Sines

    Started by ramz, October 7th, 2015 04:20
    • Replies: 6
    • Views: 831
    October 8th, 2015, 00:20 Go to last post
  18. Angle between the tangents to the circle

    Started by ramz, October 7th, 2015 23:29
    • Replies: 4
    • Views: 509
    October 8th, 2015, 00:01 Go to last post
  19. Centripetal force calculation

    Started by JarrettHayama, October 5th, 2015 03:49
    centrifuge, centripetal, force, gravity, round
    • Replies: 1
    • Views: 425
    October 5th, 2015, 06:22 Go to last post
  20. [SOLVED] trig poser

    Started by oldfart, September 24th, 2015 06:45
    angle, answer, degrees, oldfart, supposedly
    • Replies: 4
    • Views: 642
    September 25th, 2015, 06:01 Go to last post
  21. Trig proof: sum of squared cosecants

    Started by greg1313, September 19th, 2015 22:35
    demoivres, identities, solve, trigonometric, unable
    • Replies: 3
    • Views: 801
    September 21st, 2015, 23:54 Go to last post
  22. [SOLVED] NEW Beginner's Trigonometry Identities Problem

    Started by courtbits, September 9th, 2015 11:37
    appreciated, find, gladly, sintheta, theta
    • Replies: 3
    • Views: 848
    September 9th, 2015, 13:30 Go to last post
  23. [SOLVED] Simple Trigonometric Identities

    Started by courtbits, September 2nd, 2015 12:11
    identities, quadrant, secΘ, sin, trigonometric
    • Replies: 9
    • Views: 1,037
    September 2nd, 2015, 13:24 Go to last post
  24. Not a Math Guru

    Started by bikerguy, August 29th, 2015 07:08
    • Replies: 4
    • Views: 782
    August 31st, 2015, 03:14 Go to last post
  25. [SOLVED] Complex equation find x

    Started by karush, August 19th, 2015 00:11
    $$x^2+2i=0$$, easy, equation, factor, find
    • Replies: 3
    • Views: 1,173
    August 19th, 2015, 01:24 Go to last post
  26. How to find a general solution to sec2 2x = 1 tan 2x

    Started by arejet, August 16th, 2015 14:41
    arijit, cos2, equation, find, sin
    • Replies: 2
    • Views: 4,197
    August 16th, 2015, 15:45 Go to last post
  27. [SOLVED] Convert to sin x equation

    Started by karush, August 15th, 2015 17:49
    convert, coversion, equation, find, sin
    • Replies: 8
    • Views: 863
    August 16th, 2015, 08:58 Go to last post
  28. [SOLVED] trig word problem

    Started by karush, August 13th, 2015 14:55
    • Replies: 1
    • Views: 572
    August 13th, 2015, 16:09 Go to last post
  29. Triangle Questions

    Started by wailingkoh, August 8th, 2015 10:19
    • Replies: 9
    • Views: 1,245
    August 9th, 2015, 12:39 Go to last post
  30. [SOLVED] Polar to rectangular

    Started by karush, August 9th, 2015 00:20
    $y=$, answer, hard, polar, rectangular
    • Replies: 3
    • Views: 623
    August 9th, 2015, 03:00 Go to last post
  31. Quadratic trig identity

    Started by karush, July 31st, 2015 21:34
    $$cosleft4xright, =8sin^4leftxright, break, nice, quadratic
    • Replies: 4
    • Views: 638
    July 31st, 2015, 22:39 Go to last post

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