
Sistemi Lineari a 3 Incognite

Quiz
•
Mathematics
•
2nd Grade
•
Hard
Gianpaolo Tronca
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Risolvi il sistema: 2x + 3y + z = 6, x - y + 2z = 4, 3x + y - z = 5.
x = 2, y = 2, z = 0
x = 3, y = 0, z = 1
x = 0, y = 1, z = 5
x = 1, y = 3, z = 2
2.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Qual è l'interpretazione geometrica delle soluzioni di un sistema lineare a 3 incognite?
Le soluzioni di un sistema lineare a 3 incognite sono rappresentate da un punto nel piano bidimensionale.
Le soluzioni di un sistema lineare a 3 incognite sono rappresentate dall'intersezione di tre piani nello spazio tridimensionale.
Le soluzioni di un sistema lineare a 3 incognite non hanno alcuna interpretazione geometrica.
Le soluzioni di un sistema lineare a 3 incognite sono rappresentate da un'unica retta nel piano.
3.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Risolvi il sistema: x + 2y + 3z = 9, 2x - y + z = 3, x + y - z = 1.
x = 3, y = 0, z = 1
x = 2, y = 1, z = 2
x = 0, y = 3, z = 2
x = 1, y = 2, z = 3
4.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Cosa significa avere infinite soluzioni in un sistema lineare?
Le equazioni sono indipendenti e non si intersecano mai.
Il sistema ha esattamente una soluzione unica.
Le equazioni rappresentano due rette parallele.
Le equazioni sono dipendenti e rappresentano la stessa retta o piano.
5.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Risolvi il sistema: 4x + y - z = 7, 2x + 3y + z = 12, x - 2y + 4z = 5.
x = 2, y = 1, z = 3
x = 3, y = 0, z = 1
x = 1, y = 2, z = 4
x = 0, y = 3, z = 2
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