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Perkalian Skalar Vektor

Authored by Siti Hanifah

Mathematics

10th Grade

Used 201+ times

Perkalian Skalar Vektor
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8 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Jika vektor  u=(21) \overrightarrow{u}=\left(\frac{2}{-1}\right)\   dan  v=(34)\overrightarrow{v}=\left(\frac{-3}{-4}\right)  , hasil  uv\overrightarrow{u}\cdot\overrightarrow{v}  adalah ....

10

6

2

-2

-10

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Hasil perkalian skalar vektor  u  = 4ij\overrightarrow{u\ }\ =\ 4i-j  da v=3i+7j\overrightarrow{v}=3i+7j  adalah ...

24

5

2

-2

-24

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Diketahui koordinat titik  A\left(2,1,-3\right) , B(4,2,5)B\left(4,-2,5\right)  dan  C(1,4,2)C\left(-1,4,-2\right)  . Hasil perkalian skalar  ABBC\overrightarrow{AB}\cdot\overrightarrow{BC}  adalah ....

84

28

-28

-64

-84

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

besar sudut antara a=(3, 2, 4) dan b=(2, 3, -3) adalah ...°...\degree  

 0°0\degree  

 60°60\degree  

 90°90\degree  

 180°180\degree  

 45°45\degree  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui |a|=12, |b| =4 dan  θ\theta  =150 derajat. maka hasil kali skalar yang membentuk sudut  θ\theta  adalah....

 243-24\sqrt{3}  

 24324\sqrt{3}  

 24224\sqrt{2}  

24

-24

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui vektor  s=(2, 4), t=(3, 1), \overrightarrow{s}=\left(-2,\ -4\right),\ \overrightarrow{t}=\left(3,\ -1\right),\   dan  u=(2, 3)\overrightarrow{u}=\left(-2,\ 3\right)  vektor hasil dari  s+2t3u\overrightarrow{s}+2\overrightarrow{t}-3\overrightarrow{u}  adalah ...

 9i10j9\overrightarrow{i}-10\overrightarrow{j}  

 10i15j10\overrightarrow{i}-15\overrightarrow{j}  

 7i12j7\overrightarrow{i}-12j  

 9i+8j9\overrightarrow{i}+8\overrightarrow{j}  

 7i10j7\overrightarrow{i}-10\overrightarrow{j}  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Hasil perkalian skalar vektor  \overrightarrow{u}=6i+2j-k  dan  v=2i4j3k\overrightarrow{v}=2i-4j-3k  adalah ....

1

3

7

17

23

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