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vektor11

Authored by Ananda Paramitha

Mathematics

11th Grade

vektor11
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14 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Panjang  p =(3,6)\overrightarrow{p}\ =(-3,6)   adalah . . . . .

 454\sqrt{5}  

 353\sqrt{5}  

 252\sqrt{5}  

 5\sqrt{5}  

 535\sqrt{3}  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui a=5i+2j, b=3i+2j\overrightarrow{a}=-5i+2j,\ \overrightarrow{b}=-3i+2j  dan  c=3i7j\overrightarrow{c}=3i-7j  . Maka  nilai  3ca+2b3\overrightarrow{c}-\overrightarrow{a}+2\overrightarrow{b}  adalah . . . . .

 8i19j8i-19j  

 8i+19j8i+19j  

 8i19j-8i-19j  

 8i+19j-8i+19j  

 8i19j8i-19j  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jika P(4,2) dan Q(-1,6) maka  PQ\overrightarrow{PQ}    adalah . . . . .

5i – 4j

5i + 4j

 -5i - 4j

 -5i + 4j

4i – 5j

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui  a =(1,3)\overrightarrow{a}\ =(1,3)  ,  b =(4,5)\overrightarrow{b}\ =(4,5)  , dan  c =(2,6)\overrightarrow{c}\ =(-2,-6)   maka  3a b +c3\overrightarrow{a}\ -\overrightarrow{b}\ +\overrightarrow{c}     adalah . . . . .

( - 1, - 2)

(3,2)

( -3, - 2)

(1,2)

( -3, - 1)

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jika vektor a=i+2j+3k,  b =5i+4jk\overrightarrow{a}=i+2j+3k,\ \ \overrightarrow{b}\ =5i+4j-k  dan   c =4ij+k\ \overrightarrow{c}\ =4i-j+k   maka  a +2b3c=\overrightarrow{a}\ +2\overrightarrow{b}-3\overrightarrow{c}=  . . . . .

 6i12j+8k-6i-12j+8k  

 i+12j2k-i+12j-2k  

 i+13j2k-i+13j-2k  

 6i+11j8k-6i+11j-8k  

 7i+13j8k-7i+13j-8k  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 Diketahui vektor  a=2i+3j4k, b =4i6j+5k\overrightarrow{a}=2i+3j-4k,\ \overrightarrow{b}\ =4i-6j+5k , dan  c=2i4j+6k\overrightarrow{c}=2i-4j+6k . Vektor  2a3b+c=2\overrightarrow{a}-3\overrightarrow{b}+\overrightarrow{c}=  . . . . .

 i7j15ki-7j-15k  

 i+20j17ki+20j-17k  

 i7j17ki-7j-17k  

 6i+20j17k-6i+20j-17k  

 6i7j15k-6i-7j-15k  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui  u =5i3j\overrightarrow{u}\ =5i-3j , panjang  u\overrightarrow{u}  adalah . . . . .

 34\sqrt{34}  

 2112\sqrt{11}  

 54\sqrt{54}  

 31\sqrt{31}  

 21\sqrt{21}  

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