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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
Read more about equations at:
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Swing it backwards and forwards, because according to newtons law, every action force has an opposite and equal reaction force. When you swing it one way, the jet pack will be pushed to other way, so when this motion is completed as many times/ with enough energy, the person will reach the station
The first I think I am not so sure