Chapter 17, Problem 17.7E

Interpretation Introduction

Interpretation:

The given statement that Stirling’s approximation equation could be obtained from the given expression is to be shown.

Concept introduction:

Stirling’s approximation is used to estimate the natural logarithm of factorial of a number. The Stirling’s approximation is represented as,

$\ln N!\approx N\ln N-N$

It is assumed in Stirling’s approximation that $N$ is a large number.