Functions & Inverses Course for Calculus
Get the basics RIGHT on Functions, Operations with Functions and Inverses
Mathematics,International High School,Calculus,Basics
Lectures -51
Resources -1
Duration -7 hours
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Course Description
WHAT STUDENT STILL DONT GET, YET?!
What are functions? Its easy and obvious, right?... Its just f(x), right? NO! xD... Most student know how to work the basics with functions but are clueless about the concept involved, even college student! In this course we'll give different points of view such as relations, procedures.
Functions viewed as labelers (what the HECK??!...you'll see..) will motivate the notions of 1-1, onto or bijective properties.
What operations can be made with functions? (you all know that... but lets review it in a mature manner, OK?.. ) Sum, multiplication, division, composition, restriction. We'll see these in detail. These are very simples, but they contain many important concepts in mathematics, we will find them... illuminating... like a Christmas tree! :)
Use composition of functions as a means to understand change of variables (you most probably did not expect that...), moreover when combined with image of sets, allow us to better understand function transformations (yes...yes... now this is a new idea, a good idea indeed! :O). This is one of the subjects that students have more difficulties, both high-school and college. It is now that you'll make sense of them, finally...phew
What is the inverse function? This is intimately connected with bijective functions, wow! And what about those, nasty.... that are not bijective, what should we do? (I'm sooo psyched for this episode!) We'll discuss in detail examples of both.
Yes, I want more now!... This is part 1, more soon... this takes a lot of work to put together :)
With this lecture videos you'll find a pdf file. The videos complement the sections of the pdf, which also has the exercises with solutions. On the title of each video you find the corresponding section of the pdf.
Goals
What will you learn in this course:
- You'll be able to translate the concept of function and its properties to different points of view: Relations, procedures, diagram, tables and graphs.
- You'll be able to understand what are 1-1, onto and bijective functions logically and intuitively.
- See change of variables and function transformation under the light of functions composition and image of sets.
- Get a solid foundation of function Inverses.
- What is a square root? We'll see in detail using the notion of inverse.
Prerequisites
What are the prerequisites for this course?
- A basic knowledge of functions at the high-school level is mandatory, unless you are a superstudent!
- Having college calculus under your belt will bring the greatest benefits, but is not required. This course is not for babies xD
Curriculum
Check out the detailed breakdown of what’s inside the course
Functions
15 Lectures
- Introduction 04:48 04:48
- Functions as Special Relations (Sec 1.1) 13:11 13:11
- Example 1 of Functions (Sec 1.1.1) 06:20 06:20
- Example 2 of Functions (Sec 1.1.1) 09:07 09:07
- Commentary on Functions (Sec 1.1.1) 09:03 09:03
- Four Representations of a Function (Sec 1.1.2) 05:02 05:02
- Seeing functions as Procedures (Sec 1.2) 10:50 10:50
- Example 1 of Procedures (Sec 1.2.1) 08:46 08:46
- Example 2 of Procedures (Sec 1.2.1) 12:34 12:34
- Procedures vs Relations (Sec 1.3) 06:36 06:36
- 1-1 vs onto vs bijective Functions (Sec 1.4.1) 16:05 16:05
- Image of a Set (Sec 1.4.2) 07:42 07:42
- More Examples of Images of a Set (Sec 1.4.2) 07:13 07:13
- Preimage of a Set (Sec 1.4.3) 08:08 08:08
- Examples of Preimages (Sec 1.4.3) 05:26 05:26
Operations with Functions
15 Lectures
Inverse Functions
20 Lectures
Notes, Exercises and Solutions
1 Lectures
Instructor Details
Pedro Matos
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