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# Unit 2: Differentiation: definition and basic derivative rules

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## About this unit

The derivative of a function describes the function's instantaneous rate of change at a certain point - it gives us the slope of the line tangent to the function's graph at that point. See how we define the derivative using limits, and learn to find derivatives quickly with the very useful power, product, and quotient rules.### Learn

### Practice

- Secant lines & average rate of changeGet 3 of 4 questions to level up!
- Derivative as slope of curveGet 3 of 4 questions to level up!
- The derivative & tangent line equationsGet 3 of 4 questions to level up!

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### Practice

- Derivative as a limitGet 3 of 4 questions to level up!

### Practice

- Estimate derivativesGet 3 of 4 questions to level up!

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### Practice

- Differentiability at a point: graphicalGet 3 of 4 questions to level up!
- Differentiability at a point: algebraicGet 3 of 4 questions to level up!

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

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### Practice

- Power rule (positive integer powers)Get 3 of 4 questions to level up!
- Power rule (negative & fractional powers)Get 3 of 4 questions to level up!
- Power rule (with rewriting the expression)Get 3 of 4 questions to level up!

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### Practice

- Basic derivative rules: find the errorGet 3 of 4 questions to level up!
- Basic derivative rules: tableGet 3 of 4 questions to level up!

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### Practice

- Differentiate polynomialsGet 3 of 4 questions to level up!
- Differentiate integer powers (mixed positive and negative)Get 3 of 4 questions to level up!
- Tangents of polynomialsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 640 Mastery points

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### Practice

- Derivatives of sin(x) and cos(x)Get 3 of 4 questions to level up!
- Derivatives of 𝑒ˣ and ln(x)Get 3 of 4 questions to level up!

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### Practice

- Differentiate productsGet 3 of 4 questions to level up!
- Product rule with tablesGet 3 of 4 questions to level up!

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### Practice

- Differentiate quotientsGet 3 of 4 questions to level up!
- Quotient rule with tablesGet 3 of 4 questions to level up!
- Differentiate rational functionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 640 Mastery points

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Level up on all the skills in this unit and collect up to 2300 Mastery points!#### Unit test

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