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To solve the inequalities, let’s break them down one by one.
(a)
This absolute value inequality can be rewritten as a compound inequality:
We can split it into two separate inequalities:
-
Lower Bound:Adding 5 to both sides:Dividing by 4:
-
Upper Bound:Adding 5 to both sides:Dividing by 4:
Combining both results, we have:
(b)
Similarly, this absolute value inequality can be rewritten as:
We will tackle both sides of the inequality:
-
Lower Bound:Adding 1 to both sides:Since
is always greater than or equal to 0 for real numbers, this inequality is always satisfied. -
Upper Bound:Adding 1 to both sides:Taking the square root of both sides, keeping in mind both positive and negative roots:
Combining these results, we find that the values satisfying both inequalities are:
Final Results:
- For inequality (a):
- For inequality (b):
Thus,
- Overall Solution for (a):
- Overall Solution for (b):