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quadrantal

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  • Trig: Trigonometry on the Coordinate Plane - This 73 minute trigonometry lesson covers angles in standard position, co-terminal angles and principal angles. The six trig ratios are defined for an angle in standard position and the CAST rule is introduced. The lesson finishes with finding reference angles. This lesson will show you how to : - draw positive and negative angles in standard position - find positive and negative angles co-terminal with a given angle - find the principal angle - work with the terminal arm, positive and negative angles, - find the six trig ratios of an angle in standard position in all four quadrants - use and understand the CAST rule - find reference angles - work with quadrantal angles Thislesson contains explanations of the concepts and 15 example questions with step by step solutions plus 5 interactive review questions with solutions. Lessons that will help you with the fundamentals of this lesson include: - 300 Basic Trigonometry Part I ( - 315 Basic Trigonometry Part II (
  • Twinkle Twinkle Unit Circle unit circle song made for extra credit in math lyrics: Twinkle, twinkle Unit Circle Remembering it will be an easy cycle The Unit Circle is so fun, All points are positive in Quadrant One In quadrant two all x points are negative While the y is still positive, Quadrant three everything is negative And quadrant four only has x points positive At Zero degrees the point is (1, 0), 180 degrees is the same but x is negative 1, 90 degrees is (0, 1), 360 degrees is 0 negative 1 The radians for zero are two Pi and zero The first quadrantal angle is pi over two The next quadrantal angle is just pi And the next one is three pi over two See you already have 4 points discovered Lets makes the rest of this circle uncovered. At 30 degrees or Pi over six The point is root three over two and one half At 45 degrees there is more Its also known as: pi over four The point is root two over two, Comma root two over two. At 60 degree-ee-ees Also called pi over three The point is one half, comma root three over two Lets hope this doesnt cause a giant hullabaloo Skipping the quadrantal angle of 90 degrees We wind up in quadrant two if you please In this quadrant x is negative, And the y coordinate is positive. The next angle is 120 degrees The radians are two pi over three The point is negative one half, Comma root three over two Then we have 135 degrees In radians this is three pi over four The point is negative root two over two, Comma root two over two. Then there is in radians five pi over ...
  • Determining Trig Function Values Using Reference Angles and Reference Triangles mathispower4
  • DETERMINE THE SIGNS OF TRIG FUNCTIONS GIVEN INFORMATION Determine the signs of trigonometric functions given an angle or given nature of two functions
  • Celestial Navigation: Adjusting your ***tant Navigating by the heavenly bodies is one of the oldest of the mariner's arts -- and one of the most awe-inspiring. It is also essential for every ocean sailor who wants to be able to fix his position should the GPS fail. In the book, Celestial Navigation, Tom Cunliffe shows how to master the art in easy stages. Today he talks about Adjusting your ***tant. Read more at:
  • Celestial Navigation: Quadrantal Error Navigating by the heavenly bodies is one of the oldest of the mariner's arts -- and one of the most awe-inspiring. It is also essential for every ocean sailor who wants to be able to fix his position should the GPS fail. In the book, Celestial Navigation, Tom Cunliffe shows how to master the art in easy stages. Today he talks about Quadrantal Error. Read more at:
  • Trig: The Unit Circle, Degrees & Radians This 80 minute trigonometry lesson is a study of the Unit Circle (a circle with a radius of one unit) and its x and y coordinates. This lesson will show you how to find the exact value of the six trig ratios of: - all quadrantal angles 0 or 2 Pi radians, Pi/2 radians, Pi radians, 3Pi/2 radians, - angles with a reference angle of Pi/4 radians (45 degrees) - angles with a reference angle of Pi/6 (30 degrees) - angles with a reference angle of Pi/3 (30 degrees) Thislesson contains explanations of the concepts and 12 example questions with step by step solutions plus 5 interactive review questions with solutions. Lessons that will help you with the fundamentals of this lesson include: - 300 Basic Trigonometry Part I ( - 315 Basic Trigonometry Part II ( - 320 Trigonometry on the Coordinate Plane ( - 330 Arc Length Solving 1st Degree Trig Equations (Radians) (
  • Quadrantal Angles (6.2c) trig
  • VALUES OF QUADRANTAL ANGLES Shortcut for finding the values of the trigonometric functions of quadrantal angles
  • How to Math - Determine what quadrant an angle lies in - Free Math Help Videos Ishow how to solve math problems online during a live classroom. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exaclty how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. I post all of my videos on youtube but if you are looking for other ways to interact with me and my videos you can follow me on the following pages: Tumbler: , Blogger: , Twitter: @mrbrianmclogan Facebook: mrbrianmclogan Youtube: /mrbrianmclogan
  • Quadrantal Angles
  • Memorizing The Trig Table After you have learned how to find the values of the special angles with triangles, you still need a quick way to memorize them. This is a trick I teach my students to be able to find these as well as the trig functions of all the quadrantal angles. More guides at