Sustavi linearnih jednadžbi
Quiz
•
Mathematics
•
8th - 12th Grade
•
Hard
Aleksandra Brmbota
Used 14+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sustav jednadžbi
x−2y=3
−x+2y=3
nema rješenja
rješenje je uređeni par
ima beskonačno mnogo rješenja
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ako sustav jednadžbi
mx + 8y − 4 = 0 i
x − 4y + n = 0
ima beskonačno mnogo rješenja, tada je
m = 2, n = 2
m = 1, n = -4
m = -2, n = 2
m = 2, n = -2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rješenje sustava jednadžbi
x−4y+3=0
3x−2y+9=0
je
(3,0)
(3,3/2)
(-3,0)
nema rješenja
ima beskonačno mnogo rješenja
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Za rješenje (x,y) sustava
2x+3y+5=0
2x−3y+1=0
vrijedi
x i y su suprotni brojevi (x + y = 0)
x i y su recipročni brojevi (xy = 1)
x i y su jednaki brojevi (x = y)
jedna od nepoznanica je jednaka nuli.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Za a=−2 sustav jednadžbi
ax+3y=1
2x+3y=−1
je neodređen
ima jedinstveno rješenje
je nesuglasan.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Za k=−2/3 sustav jednadžbi
2x−3y=1
kx+y=1
nema rješenja
ima jedinstveno rješenje
ima beskonačno mnogo rješenja
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Za rješenje sustava jednadžbi
mx−3y=1
2x+y=1
vrijedi x<y ako i samo ako je|m|<6
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