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Mathematical Methods: Units 1 and 2

Using logarithms to solve exponential equations and inequalities

Exponential functions and logarithms

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About this lesson
We have looked at the concepts of what exponential graphs are and how we can draw them. We have looked at how we can simplify them and now it's onto the exciting stuff to see how we can solve exponentials and graphs. I open the video with a small rant about how people who do nothing more than fly the world recording videos about them eating food can get 3.2 million views in 3 days! Yet I am here doing all I can to educate the world and have 3.2 views LOL. I then move onto showing you ... not one, not two but three different ways of looking solving exponentials to find the values of x. This includes the idea of a change of base. This theory is then used to show how to solve inequalities and sketch graphs of exponentials. Who would have thought that solving exponential graphs could be this much fun!
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VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at www.vcaa.vic.edu.au

Video details
  • Title Using logarithms to solve exponential equations and inequalities
  • Section Exponential functions and logarithms
  • Course Mathematical Methods: Units 1 and 2

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