Exponential Equations
This lesson covers the definition and properties of exponential equations. It explains how to solve exponential equations of linear form by ensuring the bases are the same. Examples are provided to illustrate the process of finding the unknown variable in these equations.
- 00:00 “Good day, My name is Afeez. I'm going to take you further math and our today's topic is going to be a continuation of indices, which is called Exponential Equations. At the end of this topic, we should be able to know ho...”
- 03:56 “it means that if we have, how do we make this one to have the same base with the right-hand side? So we have, this is going to be 25 all over 100. That is 0.25 give us 25 over 100 all is power of x plus one equals. And t...”
- 04:44 “minus one. That is four is per minus one. All raised to power was x plus one equals four raised to power two. And by the time we use what we call the power law in our indices, in our law of indices, we can easily have th...”
Electric Cells and Current Electricity
The lesson covers the types of electric cells, including primary and secondary cells. It explains the concepts of electromagnetic force, current electricity, potential difference, and resistance. The arrangement of cells in series and parallel is also discussed.
- 41:43 “And we multiply it, we have got E minus V is equals to 1.01 times. Now, we have got us as votes. We have got to take this one as an evolution. Thank you for watching with us. I am M N N D John. See you in the next class.”
- 21:58 “Let's proceed. Now, electric potential, electric potential, it is a work done in moving a unit charge from an infinity to a point of consideration. And we have the formula to be given us, V is equals to W over Q, and W i...”
- 20:50 “Now, which we have to be this, that's K, we have the F is equals to this, this is how to solve it, we have this as the charges, then substitute to get the charge. Well, let's go back to this, which you have, is equals to...”
Simplification of Algebraic Expressions
This lesson covers the definition of algebraic expressions and their components, including terms and coefficients. It explains how to identify like terms, perform arithmetic operations on similar terms, and simplify expressions by inserting or removing brackets.
- 20:52 “Like it says here. Multiply 3 by the second term, like I explained earlier, and you get 3b. At the end of the day, you get 6a plus 3b. More examples. You can solve this on your own. I'll just solve just one of it. Expand...”
- 23:10 “So you have minus 2 into bracket 3m plus we have minus 2. So you bracket it out. 5. So minus 2 times 3m is minus 6m. Now you should remember the rules of multiplication, the rules you use in multiplying addition and subt...”
- 24:44 “you see a large expression filled with brackets, multiplication, addition, and subtraction, the first thing you try to solve is the brackets. You go then with the off, division, multiplication, addition, and then subtrac...”