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Section 2.5 Implicit Differentiation

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1 Section 2.5 Implicit Differentiation
Calculus Section 2.5 Implicit Differentiation

2 Terminology Equations in explicit form can be solved for y in terms of x (e.g. functions) Equations in implicit form CANNOT be solved for y in terms of x (e.g. equations of circles)

3 Implicit Differentiation
Goal is to find (to derive with respect to x) Differentiate x terms as usual (apply Power Rule, etc.) Differentiate y terms, applying the Chain Rule

4 Implicit Differentiation Process
Differentiate both sides of the equation with respect to x Move all terms to the left side, and all other terms to the right side Factor out from the left side Solve for , by dividing

5 Example

6 Example 2

7 Example 2 continued

8 Example We want the derivative in terms of x and y, so substitute for dy/dx

9 Ex. Cont.

10 Double Derivatives


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