a. 5! = 120
b. 2!3! — 2•1•3•2•1 = 12
c. 3! ÷ 2! — 6 ÷ 2 = 3
d. 3! = 6
e. 4! ÷ 2! — 24 ÷ 2 = 12
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Answers & Comments
b. 2!3! = 2x1x3x2x1 = 12
c. 3!/2! = 3x2x1/2x1 = 6/2 = 3
d. 3! = 3x2x1 = 6
e. 4!/2! = 4x3x2x1 /2x1 = 24/2 = 12
a. 5! = 120
b. 2!3! — 2•1•3•2•1 = 12
c. 3! ÷ 2! — 6 ÷ 2 = 3
d. 3! = 6
e. 4! ÷ 2! — 24 ÷ 2 = 12