Derivative Criterion for Constant Product
For non-zero differentiable functions:
$$\frac{f'(x)}{f(x)}+\frac{g'(x)}{g(x)}=0$$
implies:
$$f(x)g(x)=C$$
Usage
- Used to recognize when the product of two functions remains constant.
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CAT Formulas
Applications of Derivatives
Derivative Criterion for Constant Product
Derivative Criterion for Constant Product
For non-zero differentiable functions:
$$\frac{f'(x)}{f(x)}+\frac{g'(x)}{g(x)}=0$$
implies:
$$f(x)g(x)=C$$
Usage
- Used to recognize when the product of two functions remains constant.
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