|x| ≤ a
is gelijkwaardig met

( a > 0 verondersteld )
A.   x ≤ a ∨ x ≥ − a
B.   − |x| ≤ x ≤ |x|
C.     x ≤ a
D.   x ∈ R \ ]− a,+a[
E.   − a ≤ x ≤ +a
A    B    C    D    E

[ 5-6910 - op net sinds 18.2.12-(E)-29.10.2023 ]

Translation in   E N G L I S H

  |x| ≤ a
is equivalent with
( we assume a > 0 )
A.   x ≤ a ∨ x ≥ − a
B.   − |x| ≤ x ≤ |x|
C.     x ≤ a
D.   x ∈ R \ (− a,+a)
E.   − a ≤ x ≤ +a

Oplossing - Solution

    |x| ≤ a
 ⇔  − a ≤ x ≤ +a
 ⇔  x ∈ [ − a, +a ]
gricha