Find all values of 
and 
which make the following function continuous: 
Definitions:
Advertising
The process or occupation involved in making adverts for business products or services.
Product Differentiation
The practice of differentiating a product or service to appeal more to a specific target market.
Allocative Efficiency
A state of resource allocation where it is impossible to make any one individual better off without making someone else worse off, effectively maximizing overall social welfare.
Productive Efficiency
A situation where an economy or entity cannot produce more of one good without reducing the output of another good, indicating optimal resource allocation.
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