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# Unit 7: Applications of derivatives

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## About this unit

Differential calculus is all about instantaneous rate of change. Let's see how the tools we've developed are applied in order to solve real-world word problems.### Learn

### Practice

- Analyzing related rates problems: expressionsGet 3 of 4 questions to level up!
- Analyzing related rates problems: equationsGet 3 of 4 questions to level up!

### Learn

### Practice

- Related rates introGet 3 of 4 questions to level up!
- Related rates (multiple rates)Get 3 of 4 questions to level up!
- Related rates (Pythagorean theorem)Get 3 of 4 questions to level up!
- Related rates (advanced)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 560 Mastery points

### Learn

### Practice

- OptimizationGet 3 of 4 questions to level up!

### Learn

### Practice

- Motion problems (differential calc)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 160 Mastery points

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Level up on all the skills in this unit and collect up to 900 Mastery points!