Evaluate: P(7, 4)
Added by Santosh G.
Step 1
The formula for permutations is P(n, r) = n! / (n-r)!, where n is the total number of items, r is the number of items to choose, and "!" denotes factorial. So, P(7, 4) = 7! / (7-4)! = 7! / 3! Show more…
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