
Vectori-operatii
Authored by Tamara Popovici
Mathematics
8th Grade
Used 7+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fie A(3; 5), B(-2; -3). Coordonatele vectorului sunt
(1; -8)
(-5; -8)
(-5;2)
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fie M(-1;4), translaţia x1=x+5, y1=y-5, atunci punctul M1 are coordonatele
(6; 1)
(4; -1)
(-6; 9)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Modulul vectorului u(8; -6) este
10
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Fie vectorii u(m+1; -2) , v(4; n+3) şi u =v, atunci m şi n sunt egali cu
m=3 n= -5
m= -3 n= -1
m =4 n= 3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie u (-10; -6), v (8; -2), atunci u + v =
(-18; -8)
(18; -4)
(-2; -8)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie a(3; -5), b(-11; 9), atunci a - b =
(14; 4)
(-8; -14)
(14; -14)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă u(-15; 10) atunci opusul acestui vector este
(-15; -10)
(15; -10)
(15; 10)
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