Find the value of n! (n − r)! when n = 15 and r = 13.
Chapter9: Sequences, Probability And Counting Theory
Section9.4: Series And Their Notations
Problem 50SE: The sum of terms 50k2 from k=x through 7 is 115. What is x?
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Find the value of
n! |
(n − r)! |
when n = 15 and r = 13.
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