BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.1, Problem 68E

(a)

To determine

To evaluate: the expression |2|12|| .

Expert Solution

Answer to Problem 68E

  |2|12||=10

Explanation of Solution

Given information:

An expression is given as |2|12|| .

Formula used:

Absolute value property:

For any real number a,

  |a|=a0|a|=|a|=a

Calculation:

Consider the given expression.

  |2|12||

Now, evaluate the expression:

  |2|12||=|212| [|a|=|a|=a]=|10| [|a|=|a|=a]=10

Hence, |2|12||=10

(b)

To determine

To evaluate: the expression 1|1|1|| .

Expert Solution

Answer to Problem 68E

  1|1|1||=1

Explanation of Solution

Given information:

An expression is given as 1|1|1|| .

Formula used:

Absolute value property:

For any real number a,

  |a|=a0|a|=|a|=a

Calculation:

Consider the given expression.

Now, evaluate the expression:

  1|1|1||=1|11| [|a|=|a|=a]=1|0| =1

Hence, 1|1|1||=1 .

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