# Question: A Definition 4 7 on page 171 b Formula 4 3 on page

a. Definition 4.7 on page 171.

b. Formula 4.3 on page 171.

Compare your answers in parts (a) and (b).

b. Formula 4.3 on page 171.

Compare your answers in parts (a) and (b).

## Answer to relevant Questions

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