|X - 5| + 4 > 0 and |X2
| < 4. Then x can be:
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Given:
...(1)
...(2)
The mode inequality can be solved by isolation.
...(1)
The mode functions are positive or 0, so this has solutions over reals.
...(2)
This gives two inequalities for x.
The upper inequality has solutions over reals.
The inequality below gives .
Solution
The intersection of three ranges is .
More information:
We usually find the ranges where the mode becomes 'negative', and '0 or positive'. When mode becomes negative, we apply a negative sign.
This fact is used in mode equations and inequalities.
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