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Forum: Trigonometry

Trigonometric Functions, Trigonometric Identities, etc.

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  2. finding functions

    Started by fordy2707, July 3rd, 2016 13:24
    angle, functions, phase, radians, seconds
    • Replies: 3
    • Views: 734
    July 10th, 2016, 11:34 Go to last post
  3. Trig Expression Domain

    Started by tmt, June 26th, 2016 16:59
    cos, cos^2theta$, fracpi2, sqrt, theta$
    • Replies: 1
    • Views: 478
    June 26th, 2016, 17:53 Go to last post
  4. solve the equations

    Started by matyw, June 6th, 2016 21:13
    180°, equations, rquation, solve, tan°x
    • Replies: 4
    • Views: 821
    June 11th, 2016, 07:16 Go to last post
  5. question related to inverse sine functions

    Started by gsn57iaf, May 21st, 2016 02:48
    π/3, 1/2, case, correct, sin-1
    • Replies: 2
    • Views: 517
    May 21st, 2016, 03:25 Go to last post
  6. [SOLVED] Beginner's Verifying Trig Identity

    Started by courtbits, October 13th, 2015 12:05
    asin, cot, identity, trig, verifying
    • Replies: 7
    • Views: 973
    May 15th, 2016, 22:41 Go to last post
  7. [SOLVED] arccos(x) =arctan(x)

    Started by karush, April 7th, 2016 18:34
    $x$, =arctanx, explain, intersects, negative
    • Replies: 8
    • Views: 1,379
    May 14th, 2016, 01:57 Go to last post
  8. Helping my daughter study for a Trig test....

    Started by ok782, April 17th, 2016 14:25
    daughter, find, solve, study, trig
    • Replies: 3
    • Views: 624
    May 14th, 2016, 00:58 Go to last post
  9. [SOLVED] equal graphs polar and rectangular

    Started by karush, April 4th, 2016 18:20
    • Replies: 2
    • Views: 456
    April 5th, 2016, 17:12 Go to last post
  10. [SOLVED] Define a discontinuous sine function?

    Started by samir, April 5th, 2016 04:35
    define, discontinuous, function, multiples, sine
    • Replies: 2
    • Views: 511
    April 5th, 2016, 06:08 Go to last post
  11. trigonometry mountain assessment problem

    Started by jenherting, March 29th, 2016 22:37
    ground, meters, number, point, track
    • Replies: 3
    • Views: 574
    March 30th, 2016, 16:56 Go to last post
  12. [ASK] Tan 36°

    Started by Monoxdifly, March 22nd, 2016 21:36
    • Replies: 7
    • Views: 1,248
    March 25th, 2016, 21:19 Go to last post
  13. [SOLVED] y=sinx in polar form

    Started by karush, March 24th, 2016 23:51
    equations, form, plots, polar, simple
    • Replies: 4
    • Views: 755
    March 25th, 2016, 18:41 Go to last post
  14. Y=x^3 in polar form

    Started by karush, March 23rd, 2016 23:58
    • Replies: 2
    • Views: 605
    March 24th, 2016, 02:29 Go to last post
  15. trig identity

    Started by paix1988, March 6th, 2016 08:49
    assistance, cos2x, identity, tanx, trig
    • Replies: 1
    • Views: 552
    March 6th, 2016, 09:20 Go to last post
  16. [SOLVED] Area and angles of iso triangle given find sides

    Started by karush, March 5th, 2016 15:31
    • Replies: 3
    • Views: 632
    March 5th, 2016, 16:22 Go to last post
  17. Right triangle

    Started by evinda, February 25th, 2016 13:12
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,479
    February 25th, 2016, 18:12 Go to last post
  18. Find time

    Started by evinda, February 17th, 2016 13:29
    airplane, airport, find, position, time
    • Replies: 3
    • Views: 579
    February 17th, 2016, 16:44 Go to last post
  19. [SOLVED] Another inconvenient identity

    Started by karush, February 12th, 2016 16:33
    bad, direction, formulas, product, sum
    • Replies: 2
    • Views: 743
    February 13th, 2016, 17:04 Go to last post
  20. [SOLVED] Trig identity theory

    Started by karush, February 12th, 2016 00:08
    $p$, $q$, are$$90^o, identity, theory
    • Replies: 8
    • Views: 1,105
    February 12th, 2016, 16:24 Go to last post
  21. [SOLVED] Trigonometric sum with a product as the argument

    Started by greg1313, February 7th, 2016 01:27
    argument, product, prove, sum, trigonometric
    • Replies: 2
    • Views: 593
    February 7th, 2016, 08:15 Go to last post
  22. Solve for frequency & angle in dispersion equation

    Started by NiToNi, January 19th, 2016 10:58
    arcsin, equation, sintheta, sin[/c, solve
    • Replies: 2
    • Views: 658
    January 21st, 2016, 07:24 Go to last post
  23. Inverse trig

    Started by Guest, January 12th, 2016 03:20
    $arcsinsinfrac−3pi2$, $arcsinsinfrac−3pi2.$, $arcsinsinfrac−3pi2?$, inverse, trig
    • Replies: 1
    • Views: 448
    January 12th, 2016, 05:05 Go to last post
  24. Inverse trigonometric functions

    Started by Guest, January 10th, 2016 05:34
    $displaystyle, arccoscosfracfracpi3, functions, inverse, trigonometric
    • Replies: 4
    • Views: 563
    January 10th, 2016, 08:36 Go to last post
  25. Trig simplication

    Started by Guest, January 2nd, 2016 01:14
    arcsinsinleft11pi/5right, simplication, simplify, trig
    • Replies: 4
    • Views: 596
    January 2nd, 2016, 02:00 Go to last post
  26. Finding the measure of Triangle ABC

    Started by Mizu, July 15th, 2015 20:17
    clue, confused, continue, labeled, measure
    • Replies: 4
    • Views: 1,423
    December 13th, 2015, 04:44 Go to last post
  27. Maxima and minima of a triangle

    Started by loquetedigo, December 10th, 2015 19:20
    triangle, height, side, abc, perimeter
    • Replies: 1
    • Views: 546
    December 10th, 2015, 23:25 Go to last post
  28. rectangular to polar

    Started by karush, November 21st, 2015 04:20
    desmos, graph, plot, polar, show
    • Replies: 5
    • Views: 765
    November 21st, 2015, 22:20 Go to last post
  29. 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: 629
    November 13th, 2015, 18:26 Go to last post
  30. [SOLVED] Dc 8t14 product to sum indentity

    Started by karush, November 12th, 2015 16:59
    $fracsinleft3thetaright, $tan4pi$, expression, simplify, sum
    • Replies: 5
    • Views: 699
    November 12th, 2015, 20:06 Go to last post
  31. [SOLVED] Trig identity

    Started by karush, November 9th, 2015 18:48
    $$=fracx+y1-xy$$, $tanx+y$, formula, identity, sum
    • Replies: 2
    • Views: 608
    November 9th, 2015, 19:06 Go to last post

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