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Chapter 7: Q 24 (page 639)

Simplify the quotients in Exercises 21鈥�28 without using a calculator.

(2n-2)!(2n)!

Short Answer

Expert verified

The value is1(2n)(2n-1).

Step by step solution

01

Step 1. Given information.

The given expression is(2n-2)!(2n)!.

02

Step 2. Value of the expression.

n!=n(n-1)!Therefore,(2n-2)!(2n)!=(2n-2)!(2n)(2n-1)(2n-2)!=1(2n)(2n-1)Now,

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