
Legi de compoziție
Authored by Monica Dumitrache
Mathematics
12th Grade
Used 75+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Fie legea de compoziție x o y = xy - x - y + 2. Precizati elementul neutru pe multimea .
e = 1
e = 2
e = 0
e = 7
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Fie legea de compoziție . Rezolvați ecuația în mulțimea numerelor reale.
3 si 4
3 si 5
3 si 6
3 si
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie legea de compoziție
pe mulțimea numerelor reale. Calculați = ....3
5
12
0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie legea de compoziție
pe mulțimea numerelor reale. Calculați = ....- 3
3
7
- 2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie legea de compoziție pe R:
x * y = xy - x - y + 2.
Calculați (-2) * 3 = ...
- 6
- 5
0
- 4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie legea de compoziție pe R
x * y = xy - x - y + 2.
Calculați 1 * 100 = ...
100
1
0
- 1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie legea de compoziție pe R
x * y = xy - x - y + 2.
Aceasta se mai poate scrie sub forma:
x * y = (x + 1)(y + 1) - 1
x * y = (x -1)(y - 1) + 1
x * y = (x -1)(y +1) -1
x * y = (x +1)(y - 1) +1
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