Here's a complete tutorial video on Charles' law. This video explain explains Charles' law and also how the kinetic theory of gas can be use to explain Charles' law.
I also solved for waec past questions on Charles' law. So, to grasp a full understanding of what Charles' law entails. Watch!!
Here's the link

https://www.youtube.com/watch?v=f_8j6c942hg

check here for the full post
https://poscholars.com/waec-2020-2021-how-to-pass-waec-2020-with-flying-colors/

Here's a complete tutorial video on Boyle's law. This video explain explains Boyle's law and also how the kinetic theory of gas can be use to explain Boyle's law.
I also solved for waec past questions on Boyle's law. So, to grasp a full understanding of what Boyle's law entails. Watch!!
Here's the link

https://www.youtube.com/watch?v=iJEVB_2hvKs

Click the link below to take the quiz
https://poscholars.com/waec-mathematics-past-questions-on-surds/

WAEC 2020: How to simplify surds questions in waec
TABLE OF CONTENT(HOW TO SIMPLIFY SURD)
Introduction to the simplification of surds questions in waec
What are surds(how to simplify surd)
How to simplify surd questions in waec 2020
Solved waec past questions on surd
A short quiz on surd(Try them out)

[center]INTRODUCTION(Waec 2020, surd)[/center]

In this tutorial, How to simplify waec surds questions will be explicitly explained here. Simplification of surds has always been the simplest topic in mathematics(my opinion tho). Surds questions in waec, jamb(utme), putme are all the same and can be tackled by understanding some basic principles which I will be revealing as we progress.

Also, most of the questions i will be using as examples will all be waec past questions. This is to show that waec surd questions are very easy, you can even tackle them with your eyes closed(Lol) .

The table of content is carefully arranged so as enable you can comprehend how to WAEC surd questions.

I won't be able to paste the full tutorial here because of the display won't be readable as a result of mathematical terms I wrote using latex.

To see the complete write up click the link below

https://poscholars.com/waec-2020-a-revision-on-surd-how-to-simplify-surd/

Solving linear algebraic equations has been a big challenge to some students, follow my tutorial series on how to tackle any question as regards solving linear equations
https://www.youtube.com/playlist?list=PLWBFjVU-VM_sKS0JGaGvBg1v8lYzGjaAk

Simultaneous equation( Linear systems) is a system of linear equations which has only one set of unique value that satisfies the system of equations.
[center]TABLE OF CONTENT[/center]
Introduction to simultaneous equations(set of linear systems)
Different method of solving simultaneous equations
How to solve simultaneous equations(linear systems) using the method of substitution
Solving simultaneous equations using method of Elimination
How to solve simultaneous equations using the graphical methods
How to solve linear systems with two variables(simultaneous equations) using cramer’s rule or the determinant method
How to solve simultaneous equations using matrix method
How to solve simultaneous equations involving fractions
Quizzes on solving simultaneous equations
For the complete tutorial with pictures and videos click the link below
https://poscholars.com/solving-simultaneous-equations-the-various-methods-used-to-solve-simultaneous-equations/