7a^2/9b^4 simplify the fraction
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Answer:
see the pic for the answers
The number of different codes does this lock provides is 360.
Given that,
- There is the combination lock having push buttons from A to F (6 buttons)
- Out of this, four should be in any order.
- Also, the push button should not be used more than once.
Based on the above information, here we use permutation which is as follows:
= 360
Therefore we can conclude that the number of different codes does this lock provides is 360.
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