Chapter 2: Q. 436 (page 208)

In the following exercises, solve
(a) $|x| = 7$
(b) $|y| = - 11$
(c) $|z| = 0$

Short Answer

Expert verified

The required solutions are

(a) $x = \pm 7$

(b) No solution

Step by step solution

Part (a) Step 1: Given information

$|x| = 7$

Part (a) Step 2: Calculation

The equivalent equations are

$x = - 7 o r x = 7 \Rightarrow x = \pm 7$

Part (b) Step 1: Given information

$|y| = - 11$

Part (b) Step 2: Calculation

No solution, since an absolute value is always positive .

Part (c) Step 1: Given information

$|z| = 0$

Part (c) Step 2: Calculation

$z = - 0 o r z = 0 S I n c e - 0 = 0 \Rightarrow z = 0$

The required solutions are

(a) $x = \pm 7$

(b)No solution

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In the following exercises, solve
(a) $|x| = 7$
(b) $|y| = - 11$
(c) $|z| = 0$

Short Answer

Step by step solution

Part (a) Step 1: Given information

Part (a) Step 2: Calculation

Part (b) Step 1: Given information

Part (b) Step 2: Calculation

Part (c) Step 1: Given information

Part (c) Step 2: Calculation

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In the following exercises, solve(a)x=7(b)y=-11(c)z=0

Short Answer

Step by step solution

Part (a) Step 1: Given information

Part (a) Step 2: Calculation

Part (b) Step 1: Given information

Part (b) Step 2: Calculation

Part (c) Step 1: Given information

Part (c) Step 2: Calculation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Logic and Functions

Decision Maths

Discrete Mathematics

Statistics

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Mechanics Maths

Study anywhere. Anytime. Across all devices.

In the following exercises, solve
(a) $|x| = 7$
(b) $|y| = - 11$
(c) $|z| = 0$