# How to Use this Course

## Two Categories of Examples

This course is build on *17 different examples* which are split into
two different categories *Even Examples* and *Odd Examples*. Examples
in different categories require different method of solution.

## Start from easy and progress to hard

Within category examples are arranged in levels of similar difficulty.
Level 1 examples are easiest. Higher level examples require *more
advanced skills*! We recommend you start with *Level 1* and work
through to higher levels.

## Try to solve each Example by yourself

For each Example, open *Question* section first. If you have an idea
how to solve it, then go ahead and solve it. Once you found the
solution, you can match it with the correct answer in *Correct Answer*
section.

If you don't know how to solve the question, then progress directly to
*Complete Written Solution* or to *Complete Video Solution* sections.

Once you learned the solution, attempt *the next* Example *by yourself*
first.

## Make sure that your answer is correct

Make *absolutely sure* that you answer is *exactly* the same as the answer
published in *Correct Answer* section. In case, you see even
minor difference, make sure you find out what went wrong with your
solution. Use *Complete Written Solution* and *Complete Video
Solution* section to find out gaps in your thinking.

## You learn *tenfold* when you *fix* your own mistakes

Every time your answer and/or your working is *not exactly the same* as
ours, you have a *unique opportunity* to expand your knowledge.

You *learn tenfold* when you find gaps in your thinking.

*Use wisely* every such opportunity: *identify* the steps where you
went wrong; analyse *why mistake occurred*. If unsure, *ask questions*!

## Always ask!

If you feel there is something *is missing*, if you feel that *you
have gaps*, ask questions!

Use *comments* to ask about *the course*; about *particular example*;
or about a particular *part of the example*. You can ask questions
*anonymously*. Simply *sign out* and your comment will be *anonymous*.

Alternatively, you can send us a *direct email* using Contact
Us button.