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Vektori

Authored by Iva Pribeg

Mathematics

11th Grade

Used 5+ times

Vektori
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7 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Neka su zadane točke A(2,3)A\left(2,3\right)  i  B(0,1)B\left(0,-1\right)  . Odredi vektor  AB\overrightarrow{AB}  .

 AB=2i+2j\overrightarrow{AB}=2\overrightarrow{i}+2\overrightarrow{j}  

 AB=2i2j\overrightarrow{AB}=-2\overrightarrow{i}-2\overrightarrow{j}  

 AB=2i4j\overrightarrow{AB}=-2\overrightarrow{i}-4\overrightarrow{j}  

 AB=2i4j\overrightarrow{AB}=2\overrightarrow{i}-4\overrightarrow{j}  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Zadani su vektori  a=2i3j\overrightarrow{a}=2\overrightarrow{i}-3\overrightarrow{j}  i   b=i7j\overrightarrow{b}=-\overrightarrow{i}-7\overrightarrow{j}  . Kolika je mjera kuta između vektora  c\overrightarrow{c}  i  d\overrightarrow{d}  ako vrijedi  c=a+b\overrightarrow{c}=\overrightarrow{a}+\overrightarrow{b}  ,  d=ab\overrightarrow{d}=\overrightarrow{a}-\overrightarrow{b}  ?

68°32´

129°45´

137°25´

14°38´

98°25´

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Neka je zadan vektor AB=3i+4j\overrightarrow{AB}=-3\overrightarrow{i}+4\overrightarrow{j}  . Odredi njegovu duljinu:

 AB=5\left|\overrightarrow{AB}\right|=\sqrt{5}  

 AB=5\left|\overrightarrow{AB}\right|=5  

 AB=1\left|\overrightarrow{AB}\right|=1  

 AB=7\left|\overrightarrow{AB}\right|=\sqrt{7}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

 AB+SE\overrightarrow{AB}+\overrightarrow{SE}  

 SA\overrightarrow{SA}  

 AE\overrightarrow{AE}  

 AS\overrightarrow{AS}  

 DA\overrightarrow{DA}  

5.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Za koji su realan broj k vektori   a=i+7j\overrightarrow{a}=-\overrightarrow{i}+7\overrightarrow{j}  i  b=ki+4j\overrightarrow{b}=k\overrightarrow{i}+4\overrightarrow{j}  okomiti?

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Točka  A(1,2)A\left(1,2\right)  početna je točka vektora  AB=i3j\overrightarrow{AB}=\overrightarrow{i}-3\overrightarrow{j}  . Koje su koordinate točke B?

(2,-5)

(2,-1)

(0,1)

(0,-1)

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

U paralelogramu ABCD odredi AB+CD\overrightarrow{AB}+\overrightarrow{CD}  

 2AB2\overrightarrow{AB}  

 2CD2\overrightarrow{CD}  

 0\overrightarrow{0}  

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