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Chapter 12: Q. 212E (page 1213)

In the following exercises, evaluate.

(a) 31 (b) 99 (c) 70 (d)53

Short Answer

Expert verified

(a)3

(b)1

(c)1

(d)10

Step by step solution

01

Part (a) Step 1 Given information 

Evaluate31

02

Part (a) Step 2 Solution 

31=3!(3-1)!路1!=3

03

Part (b) Step 1 Given information 

Evaluate99

04

Part (b) Step 2 Solution 

99=9!(9-9)!路9!=1

05

Part (c) Step 1 Given information 

Evaluate70

06

Part (c) Step 2 Solution 

70=7!(7-0)!路0!=1

07

Part (d) Step 1 Given information 

Evaluate53

08

Part (d) Step 2 Solution 

53=5!(5-3)!路3!=10

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