8.1 Modelling with First-Order Differential Equations (CORE 2 - Chapter 8)

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#hindsmaths Solving first-order differential equation questions that are modelling real-life problems, by using the integrating factor
0:00 Intro
2:42 Example 1
12:18 Example 2
22:53 Example 3
41:32 End/Recap
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For example 3 part b, if I got given that in the exam I don't know if I would know that I would need to use a differential equation to solve it. So how can you tell from them asking the amount of grams of copper sulfate in 6 hours, it makes you think you need a differential equation?

jamiecroll