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9 votes
9 votes
A, taken two at a time 4) a. ** Evaluate each expression. 5) P2

User Kworr
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1 Answer

17 votes
17 votes

we have

4P2

the formula is equal to

n!/(n-r)!

n=4

r=2

substitute

4!/(4-2)!

4!/2!=(4*3*2!)/2!

simplify

4*3=12

answer is 12

User Boubou
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