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Complex numbers - polar form, calculations and geometrical applications

Complex numbers - polar form, calculations and geometrical applications

The first resource introduces the technique for writing a complex number z=a+bi in (trigonometric) polar form, r(cos (theta)+ i sin(theta)), there are few examples of converting from one form into the other (to do as a class), and then an exercise of 30 questions for students to do. The next section introduces the exponential polar form re^(i theta), a few examples of converting from one form into the other (to do as a class), and then an exercise of questions for students to do. The exercise includes questions that get students to consider what z* and -z look like in both polar forms, as well as investigating multiplying and dividing complex numbers in polar form. Answers to the exercises are included. The second resource begins with a reminder of how to multiply/divide complex numbers in polar form, followed by an exercise of questions to practise. The remaining 3 pages cover the geometrical effect of multiplying, with several examples for students to learn from. Fully worked solutions are included. The final resource focuses on examination-style questions that consider the geometric effect of multiplying by a complex number in polar form. Fully worked solutions are included.
langy74
Complex numbers

Complex numbers

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1, which is called an imaginary number because there is no real number that satisfies this equation. For the complex number a + bi, a is called the real part, and b is called the imaginary part. This lesson is suitable for the AS and A level pupils and is written in a pupil friendly manner in order to help the students easily master the topic and go on to solve all of the relevant questions with ease and confidence.
nouchinjohn
Finding roots and real factors of z^n+k=0

Finding roots and real factors of z^n+k=0

The first resource guides your class through the process of using the real and complex roots of z^n+k=0 to write down its real factors. The introduction includes the important result about the sum of conjugates and then uses equations of the form z^n=1 or z^n=-1 to establish that there is always an even number of complex roots, which can be put into conjugate pairs. It is then shown how each conjugate pair of roots produces a real quadratic factor, while each real root produces a real linear factor. To practise all this there is an exercise with 7 questions for students to complete. Solutions to all the examples and the exercise are included. The second resource contains an exercise with further examination-style questions on this topic. This could be used as additional practice in class or as a homework/test. Answers are provided.
langy74
IB Maths HL - Topic 1 Algebra - Notes

IB Maths HL - Topic 1 Algebra - Notes

Handwritten notes that I made for my HL students on Topic 1 of Algebra in the IB. It includes: 1.1 - Sequences & Series 1.2 - Exponents and Logs 1.3 - Binomial Expansion & Permutations/Combinations 1.4 - Proof by Induction 1.5 - Complex Numbers 1.6 - Complex (Polar Form) 1.7 - De Moivre's Theorem/Euler's Theorem 1.8 - Complex Conjugate Roots of Polynomials 1.9 - Solving Systems of Equations with 3 variables
jwmcrobert
Complex Numbers

Complex Numbers

A set of lessons to review complex numbers (FP1 style), before introducing FP2 style CN.
rhaycox
PreCalculus Unit 2 Polynomials

PreCalculus Unit 2 Polynomials

This is a bundle of 13 resources for PreCalculus Unit 2 Polynomials, Power Functions and Rational Functions includes 6 sets of interactive notebook foldables in color and black and white, practice problems, card sorts, notes, projects, task cards (including digital versions), color by number activity, and answer keys. Additionally, an editable unit order document is included for your own reference. Topics include: - Vertex and standard form of quadratic functions - Graphing Quadratic Functions (NEW! Not yet available elsewhere in the store) - Zeros of Polynomial functions (NEW! Not yet available elsewhere in the store) - Polynomial Division Interactive Notebook including long and synthetic division - Complex numbers - Graphing rational functions Interactive Notebook and Puzzle The resources can also be purchased individually. Related bundles include: - Functions and Graphs - Unit 2 for PreCalculus FOLDABLES only - PreCalculus Mega Teacher Resource Bundle which includes my entire library of PreCalculus units and all future PreCalculus resources. This purchase is for one teacher only. This resource is not to be shared with colleagues or used by an entire grade level, school, or district without purchasing the proper number of licenses. If you are interested in a site license, please contact me for a quote at docrunning@kulikuli.net. This resource may not be uploaded to the internet in any form, including classroom/personal websites or network drives.
docrunning
PreCalculus Unit 2  Polynomial Power functions and rational functions  Interactive Notebooks Only

PreCalculus Unit 2 Polynomial Power functions and rational functions Interactive Notebooks Only

This is a complete set of foldables for PreCalculus Unit 2 Quadratic and Rational Functions. Sets include: - Color-coded graphic organizers* - Black-line master graphic organizers - Color coded notes with examples. - Practice problems or activity such as puzzle or card sort, great for homework - Answer key for practice problems Topics include: - Vertex and standard form of quadratic functions - Graphing Quadratic Functions (NEW! Not yet available elsewhere in the store) - Zeros of Polynomial functions (NEW! Not yet available elsewhere in the store) - Polynomial Division Interactive Notebook including long and synthetic division - Complex numbers - Graphing rational functions
docrunning
Complex numbers

Complex numbers

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit (which satisfies the equation i2 = −1). In this expression, a is called the real part of the complex number, and b is called the imaginary part. This resource is suitable for 'A level,' students studying C1-C2. The lesson carefully explains the topic of complex numbers in an easy to follow manner.
nouchinjohn
Homeworks (Pure) - New AS Further Maths Syllabus

Homeworks (Pure) - New AS Further Maths Syllabus

I have included 3 sections as a free sample which you be able to find towards the bottom of this page. Split into 15 sections 1. Complex Numbers 1 2. Complex Numbers 2 3. Conic Sections 4. Hyperbolic Functions 5. Maclaurin’s Series 6. Matrices 1 7. Matrices 2 8. Method of Differences 9. Polar Coordinates 10. Proof by Induction 11. Rational Functions 12. Roots of Polynomials 13. Summation Series 14. Vectors 15. Vol. of Rev. and Mean Value Each section has 4 documents 1. Homework 2. Full worked solutions for homework 3. Challenge Questions for gifted students 4. Full worked solutions for Challenge Questions • Includes both the PDF’s and word documents which are fully editable. • They are written for the AQA syllabus but can be adapted for other exam boards. • The homework’s are intentionally quite difficult and written in an exam style. • Each homework has ~50% of the answers provided, this is to allow students to check they’re getting the first few questions correct. You can remove this if you want. Note: As there is a lot of content here there may be a few typos, I’ll be sure to update any mistakes as soon as I’m aware of them. The questions and solutions should be close to 100% accurate though.
JonnyLavelle