Odpowiedź:
( - 4, 2)
a = [tex]\frac{-4 + 2}{2} = \frac{-2}{2} = - 1[/tex]
b = 2 - ( - 1) = 3
Odp. I x + 1 I < 3
===================
spr.
I x + 1 I < 3
x + 1 > - 3 i x + 1 < 3
x > - 3 - 1 i x < 3 - 1
x > - 4 i x < 2
x ∈ ( - 4, 2 )
--------------------
Szczegółowe wyjaśnienie:
I x - a I < b
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Verified answer
Odpowiedź:
( - 4, 2)
a = [tex]\frac{-4 + 2}{2} = \frac{-2}{2} = - 1[/tex]
b = 2 - ( - 1) = 3
Odp. I x + 1 I < 3
===================
spr.
I x + 1 I < 3
x + 1 > - 3 i x + 1 < 3
x > - 3 - 1 i x < 3 - 1
x > - 4 i x < 2
x ∈ ( - 4, 2 )
--------------------
Szczegółowe wyjaśnienie:
I x - a I < b