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What is the value of 5P4?

1 Answer

Aug 12, 2017

#120#

Explanation:

#"Using" rArr ^nP_r = (n!)/((n - r)!)#

#5P4#

Where #n = 5# and #r = 4#

#5P4 = (5!)/((5 - 4)!) = (5!)/ (1!) = (5 xx 4 xx 3 xx 2 xx 1)/1#

#color(white)(xxx) = 120/1#

#color(white)(xxx) = 120#

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