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...”
- 01:30 “x equals b is an exponential equation. So example of a linear in this, our linear in this share equation. So we have two raised to power x equals to two, one over two raised to power x equals eight. Then we also have 0.2...”
- 02:17 “if the base are the same, then you must have the, we have, if for example, you have a raised to power x equals a raised to power one, you can see that we have the base, the base are the same thing. So our x now can be on...”
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.”
- 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...”
- 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...”
Translating Word Problems into Equations
The lesson teaches how to translate word sentences into mathematical equations. It covers the use of variables to represent numbers and how to express word problems as algebraic expressions. Students will learn to solve simple equations and check their answers.
- 12:06 “So we have 90 Q. So because we have the same terms, we can easily add them together, which gives you 140 Q. So because the value of Q can vary, just because we had 2 Nera already, that was how we could get the value 280....”
- 19:25 “We've come to the end of today's class. Thank you so much for watching. My name is Dorkas Aoye, till next time.”
- 06:17 “So in 10 years time, that is when you have plus 10 years, that is what it means. In 10 years time, our horde will be the daughter B. So daughter's age would be is equal to X divided by two plus 10. In 10 years time, daug...”
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...”
- 01:36 “Here we deal with alphabets majorly, such as X or Y to represent the unknown values. Here are some examples of algebraic expressions. We have two X plus 10 Y plus one. You can note that it does not have an equal sign. Wh...”
- 12:46 “The same thing applies to the second example. The second question, 10 minus x plus two y. So looking at this, the coefficient of y is plus two. The coefficient of x is one. There's an invisible one here. You don't just h...”