Precalculus Enhanced with Graphing Utilities
Precalculus Enhanced with Graphing Utilities
6th Edition
ISBN: 9780321795465
Author: Michael Sullivan, Michael III Sullivan
Publisher: PEARSON
Question
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Chapter A.5, Problem 44AYU
To determine

To find: Express R as a rational expression.

Expert Solution & Answer
Check Mark

Answer to Problem 44AYU

20 11

Explanation of Solution

Given:

The formula,

1 R  =  1 R 1  +  1 R 2  +  1 R 3

R 1  = 5

R 2  = 4

R 3  = 10

Calculation:

1 R  =  1 R 1  +  1 R 2  +  1 R 3  =  R 2  .  R 3  +  R 1  .  R 3  +  R 1  .  R 2 R 1  .  R 2 R 3

R =  R 1  .  R 2 R 3   R 2  .  R 3  +  R 1  .  R 3  +  R 1  .  R 2  =  ( 5 ) . ( 4 ) . ( 10 ) 4.10 + 5.10 + 5.4  =  20  11

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