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Operasi Vektor

Authored by Silvia Umala

Mathematics

10th Grade

Used 70+ times

Operasi Vektor
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Hasil dari   (2i5j4k)(6i+3j8k)=....(2i-5j-4k)-(-6i+3j-8k)=....  

 8i8j4k8i-8j-4k  

 8i8j+4k8i-8j+4k  

 4i8j3k-4i-8j-3k  

 4i8j12k-4i-8j-12k  

 8i+8j4k-8i+8j-4k  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui vektor a=2i+5j8k\overline{a}=2i+5j-8k  dan  b=3j+4k\overline{b}=-3j+4k  .  maka nilai dari  a3b=\overline{a}-3\overline{b}=  

 2i+14j20k2i+14j-20k  

 2i14j20k2i-14j-20k  

 2i+14j20k-2i+14j-20k  

 2i+14j+20k2i+14j+20k  

 2i14j20k-2i-14j-20k  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui vektor  u=2i+3j2ku⃗=2i+3j-2k  dan vektor  v=i2j+4kv⃗=i-2j+4k  , hasil dari  u+v=u⃗+v⃗=…  

 3ij+2k3i-j+2k  

 i+j+2ki+j+2k  

 3i+j+2k3i+j+2k  

 3i+j+2k-3i+j+2k  

 3i+5j+2k3i+5j+2k  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Jika vektor  a=i+2j+3ka⃗=i+2j+3k  dan  b=2i4j3kb⃗=2i-4j-3k  maka nilai  ab=a⃗-b⃗=…  

 i+2j+6ki+2j+6k  

 i2j6ki-2j-6k  

 i+6j6k-i+6j-6k  

 i2j+6k-i-2j+6k  

 i+8j6k-i+8j-6k  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui titik P (8,5,6)(8,-5,-6)   dan Q  (4,2,5)(4,-2,5)  . Jika vektor posisi titik P adalah  p=QRp⃗=\overline{QR}  , koordinat titik R adalah ….

 (12,7,1)(12,-7,-1)  

 (12,7,1)(12,7,-1)  

 (12,7,1)(12,-7,1)  

 (4,3,11)(4,-3,-11)  

 (4,3,11)(-4,3,11)  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jika diketahui  a=i+2j+3ka⃗=i+2j+3k  dan  b=2i4j3kb⃗=2i-4j-3k  maka nilai  ab=.a⃗∙b⃗=….  

15

-15

90

-90

19

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jika vektor  a=(3i+j+2k)a⃗=(3i+j+2k)  dan  b=(4i+3j+5k)\overrightarrow{b}=(-4i+3j+5k)  dan  c=(3i2j+2k)\overrightarrow{c}=(3i-2j+2k) Maka vektor  a2b+3c=a⃗-2b⃗+3c⃗=…  

 20i11j+2k20i-11j+2k  

 20i11j+5k20i-11j+5k  

 20i11j4k20i-11j-4k  

 20i11j2k20i-11j-2k  

 24i11j2k24i-11j-2k  

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