Evaluate the permutation of fifteen taken three at a time P(15,3). 207,300 20,730 2,007,300 2,730
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In this case, n = 15 and r = 3. So, P(15,3) = 15! / (15-3)! = 15! / 12! Now, let's calculate the factorial of 15 and 12. 15! = 15 x 14 x 13 x 12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 1,307,674,368,000 12! = 12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x Show more…
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