Μαθηματικά Γ' Γυμνασίου
Quiz
•
Mathematics
•
3rd Grade
•
Practice Problem
•
Hard
Menelaos Gkoutziomitros
Used 282+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ισχύει: (α+β)2=α2-2αβ+β2
Σωστό
Λάθος
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Ισχύει (α+β)3=
α3-3α2β+3αβ2-β3
α3+3α2β+3αβ2-β3
α3+3α2β+3αβ2+β3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Η εξίσωση αx2+βx+γ=0 παριστάνει εξίσωση 2ου βαθμού όταν:
α=0
α
β=0
β
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Η διακρίνουσα της εξίσωσης 2ου αν , θα είναι:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Η εξίσωση -x2-x+1=0 είναι εξίσωση δευτέρου βαθμού.
Σωστό
Λάθος
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Η εξίσωση x2-5x+6=0 έχει λύσεις:
x1=-3, x2=2
x1=3, x2=-2
x1=3, x2=2
x1=-3, x2=-2
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Σε μία εξίσωση δευτέρου βαθμού όταν η διακρίνουσα είναι θετική τι συμβαίνει;
H εξίσωση έχει άπειρες λύσεις
H εξίσωση έχει δύο πραγματικές λύσεις
H εξίσωση έχει μία διπλή λύση
Η εξίσωση είναι αδύνατη
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