Answer:
The major purpose of a database is to provide the information system (in its broadest sense) that utilizes it with the information the system needs according to its own requirements
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The property that must be used in all the proofs is: logb(b^y) =y
<h3>What are the proofs or rules of logarithms?</h3>
The proofs are statements that are used to validate or invalidate a logarithmic expression
There are several proofs of logarithms; some of them are:
- Product rule
- Quotient rule
- Power rule
- Change of base
The common property in the first three proofs (listed above) is:

This is so because, it links all the three proofs
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