My Trigonometry

Daniel Mentrard, Sep 17, 2020


  • 1. SOHCAHTOA:Trigonometry in the right triangle
  • 2. Memorize some trigonometric values with the hand
  • 3. Unit circle to the trigonometric coordinate system or how to draw a trigonometric function
  • 4. The real explanation of the radian in visual
  • 5. Déroulement du cercle et trigonométrie
  • 6. The roller coaster sinusoids
  • 7. Desert sinusoids
  • 8. Proof without words: Law of cosinus
  • 9. Simplified graduations of the unit circle
  • 10. Unit circle and main measure
  • 11. Place a radian angle on the unit circle
  • 12. Fourier series
  • 13. Slicing a cylinder in rotation by diagonal gives a sine function
  • 14. Understand how to plot trigonometric functions
  • 15. Understand how to plot trigonometric functions (2)
  • 16. Polygonal sinusoides
  • 17. Circumference of the circle and the radian
  • 18. Proof without words : the derivative of sinus function
  • 19. Proof without words: the derivative of the cosine function
  • 20. Sine function by color circular sectors
  • 21. Sine and cosine functions by segments
  • 22. Euler, complex numbers and unit circle
  • 23. Angle simplifications in the unit circle
  • 24. y=f(x)= tan(x) by segments construction
  • 25. Function sinus in 3D
  • 26. Function cosine in 3D
  • 27. Why derive of sine is cosine?
  • 28. sun(x): a trigonometric function
  • 29. Unroll the unit circle
  • 30. Sine Curve with Points
  • 31. Addition of 2 Sine Functions
  • 32. Trig Unspecified Triangle Cos Law
  • 33. Law of Sines
  • 34. Sine Curve with Abscissa in Degrees
  • 35. Relate Sin(a + b) and Sin(a-b)
  • 36. graphique de la fonction sinus
  • 37. Tangent with Curve Points
  • 38. ANGELU OSAGARRIEN ARRAZOI TRIGONOMETRIKOEN ARTEKO ERLAZIOA
  • 39. IV KOADRANTEKO ANGELUAK: AURKAKO ANGELUAK
  • 40. I ETA III KOADRANTETAKO ANGELUEN ARTEKO ERLAZIOAK
  • 41. I ETA II KOADRANTEKO ANGELUEN ARTEKO ERLAZIOAK
  • 42. cos²x +sin²x =1
  • 43. The parameters of the sine function and its equation
  • 44. Trigonometric equation sin(x)= A
  • 45. Trigonometric equation : cos(x)= A
  • 46. Reading tangent value
  • 47. Reading cosine values
  • 48. Reading sine values
  • 49. All trigonometric functions starting from the unit circle
  • 50. Polygonal sinusoid
  • 51. Sine function of regular polygons
  • 52. Compare cosine(pi/2+x),sin(pi/2+x),cos(pi+x),sin(pi+x) with sinx and cosx cod
  • 53. Trigonometric ratios the right triangle(in animation)
  • 54. Principal angles in the unit circle
  • 55. Cosine and sine subtraction formulas
  • 56. Cosine and sine addition formulas
  • 57. sin(a+b)= sina cosb+ sinb cosa (addition formula)
  • 58. Sine and cosine are out of phase by 90 °
  • 59. The unit square for trigonometry
  • 60. Trigonometric functions
  • 61. Trigonometry and photography
  • 62. An equilateral triangle in a square for the exact trigonometric values
  • 63. cosh(x),sinh(x) and tanh(x)
  • 64. From cosine and sine to arccosine and arcsine
  • 65. Measuring a height by two methods
  • 66. How to trace cosine function?
  • 67. How to trace sine function?
  • 68. The unit circle and the main angle measure
  • 69. Polygonaloid curve
  • 70. Split angles in the unit circle
  • 71. Unit circle and simplified angles
  • 72. Place angles in radian on the unit circle(interactive and evaluable applet)
  • 73. Euler and polar coordinates in trigonometric circle
  • 74. Exact Values on the Unit Circle (radians and degrees)
  • 75. Applied trigonometry
  • 76. Applied trigonometry: the larger of the river
  • 77. Unit Circle to Sine and Cosine Functions
  • 78. Particular angles, sine and cosine
  • 79. Cut a cylinder to get a sine function
  • 80. Supplementary cosinuses
  • 81. Supplementary sinuses
  • 82. Euler's formulas
  • 83. Integral of sin²(x) (......cos²(x))
  • 84. cos²(x)+sin²(x)=1 viewed by trigonometric functions
  • 85. Euler formula e^(it) = cos(t)+ i sin(t)
  • 86. Unroll the unit circle to obtain a trigonometric coordinates system
  • 87. Sine and cosine are orthogonal 2D projections of the 3D unit helix
  • 88. Trigonometric segments in the unit circle
  • 89. Trigonometric ratios in circle and triangle
  • 90. Trigonometric relations with a right triangle
  • 91. Derivative of sine by geometric view(part 1)
  • 92. Unroll the unit circle
  • 93. All trigonometric functions from the unit circle
  • 94. Trace of the tangente function
  • 95. Trace of sine and cosine function
  • 96. Trigonometric protractor
  • 97. The sine of a sum view by inscribed angles
  • 98. Trigonometric ratios in a single viw of the unit circle

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SOHCAHTOA:Trigonometry in the right triangle

– Daniel Mentrard

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