Numbers and Sequences in Mathematics
Course Description
An understanding of whole numbers is the essential and fundamental foundation of mathematics, and, along with the infinite sequence in which they are arranged, stored, and displayed, are vital to your understanding and ability in Mathematics.
The course starts off by discussing how large decimal numbers are written in the standard form or in scientific notation. You will learn how to convert from decimal format to the standard form and back again. You will also learn about working with indices or powers when they are negative, fractional, equal to 0, a set of natural numbers, and how to multiply and divide numbers with indices.
Next, you will be tought about patterns with imaginary numbers, what imaginary numbers are, and the definitions of rational, irrational, and prime numbers. Then you are introduced to the mathematical concept of proof by contradiction, how to find cubed roots, along with how to change the base of a logarithm and work out a logarithmic equation.
The second half of module two will introduce you to the limit of sequences in mathematics, taking you through an example. After which you will learn about an arithmetic series and a geometric series and the formula for both of them. You will learn about deriving an amortisation formula from a geometric series, and about four different circumstances under which, proof by induction can be applied.
In the last module, you will learn about what complex numbers are and how to manipulating and use them in mathematics. You will learn about what an Argand diagram is and what the modulus is, along with the meaning of I, counting numbers, and imaginary numbers. You will learn how to convert complex numbers to the polar form and multiply and divide them in the polar form. Lastly, you will learn about proving De Moivre's Theorem, solving equations that have complex numbers, and find complex and cubed roots.
What you'll learn in this course?
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Mathematics
Course Curriculum
- Learning Outcomes
- Large Numbers in Standard Form
- Changing Decimals to Standard Form
- Changing Large Numbers from Standard Form
- Changing Small Numbers from Standard Form
- Adding and Multiplying Simple Powers
- Working with Indices
- Negative Indices
- Fractional Indices, Numerator of 1
- Index Power Equal to 0
- Positive Fractional Indices All Types
- Negative Fractional Indices
- Writing Index Numbers as a Power of 2
- Quadratic Number Patterns
- Lesson Summary
- Learning Outcomes
- Patterns with Imaginary Numbers
- Rational or Irrational
- Proof by Contradiction – Root 2 is Irrational
- Finding the Cube Roots of 8
- Changing the Base of a Logarithm
- Logarithmic Equations
- Limit of Sequences
- Arithmetic Series
- Geometric Series
- Infinite Geometric Series - Part 1
- Infinite Geometric Series - Part 2
- Deriving Amortisation Formula from Geometric Series
- Proof by Induction – The Sum of the First N Natural Numbers
- Proof by Induction Applied to a Geometric Series
- Further Proof by Induction – Multiples of 3
- Further Proof by Induction – Factorials and Powers
- Lesson Summary
- Learning Outcomes
- Manipulating Complex Numbers and The Complex Conjugate
- The Argand Diagram and Modulus
- The Meaning of i
- Patterns with Imaginary Numbers
- Writing Complex Numbers in Polar Form
- Multiplying and Dividing in Polar Form (Proof)
- Multiplying and Dividing in Polar Form (Example)
- Proof of De Moivre’s Theorem
- Complex Numbers When Solving Quadratic Equations
- Cubic Equations with Complex Roots
- Finding the Cube Roots of 8
- Lesson Summary
XSIQ
Ireland
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