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cjdaly123
03.08.2019 •
Mathematics
Which type of absolute value inequality requires the use of a compound inequality to reach the solution?
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Ответ:
Let's consider this first case where the absolute value of x should be greater than or equal to 2. Intuition would tell us that if x is positive, it should be greater than or equal to 2 while if x is negative it should be less than or equal to -2. These two solutions cannot be combined together. This will be true for every expression with a greater than symbol favoring the absolute value. Answers for this case will just be written as
Now let's consider the following case:
For this expression, our x needs to be less than or equal to 2 if it's positive and greater than or equal to -2 if it's negative. We'll notice that these two conditions actually intersect! It is possible to combine the answer into a compound inequality. A compound inequality is an expression where two statements are joined by AND instead of OR (like what happened in the previous case). For this case we'll have the following
ANSWER: Inequalities where 'greater than' symbols favor the CONSTANT will make use of compound inequalities.
Ответ:
Idk
Step-by-step explanation: