Respuesta :
Answer:
The equivalent expression for |b| > 2 is {b : b < -2} ∪ {b : b > 2}.
Step-by-step explanation:
The expression |x| < a is equivalent to -a < x < a and the expression |x| > a is equivalent to {x : x < -a} ∪ {x : x > a}.
This means, the set of all points that satisfy the inequality |x| < a is the set of all points between -a and a exclusive of -a and a.
The set of all points that satisfy the inequality |x| > a is the set of all points that are less than -a and the set of all points that are greater than a.
Hence, the equivalent expression for |b| > 2 is {b : b < -2} ∪ {b : b > 2}.
Answer:
|b| > 2 is equivalent to -2 > b > 2.
Step-by-step explanation:
Definition of absolute value is:
The set of all points that satisfy the inequality |x| < c is the set of all points between c and -c except of -c and c.
In question statement , we observe that
x = b and c = 2.
Hence, the given inequality means the set of set of all points that is between 2 and -2 except 2 and -2.
hence, |b| > 2 is equivalent to -2 > b > 2.