vektor 2
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
nanik isnawiah
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diberikan dua buah vektor masing-masing a = 9 dan b = 4. Nilai cosinus sudut antara kedua vektor adalah 1/3 . la + b| = ...
9
10
11
12
13
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui vektor a = 2i – 6j – 3k dan b = 4i + 2j – 4k . Panjang proyeksi vektor a pada b adalah…..
1/2
2/3
3/4
4/3
1/3
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui vektor a = 4i − 2j + 2k dan vektor b = 2 i − 6 j + 4k. Proyeksi orthogonal vektor a pada vektor b adalah...
-i -2j - 3k
2i + 2j - k
i - 3j + 2k
i + 2j - 3k
-2i -j - 3k
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Besar sudut antara vektor a = 2i − j + 3k dan b = i + 3j − 2k adalah....
1/8 π
1/4 π
1/3 π
2 π
2/3 π
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Ditentukan A(4 , 7 , 0) , B(6 , 10 , –6) dan C(1 , 9 , 0). AB dan AC wakil-wakil dari vektor u dan v. Besar sudut antara u dan v adalah....
1/4 π
0
1/2π
π
1
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diberikan tiga buah vektor masing-masing:
a = 6p i + 2p j − 8 k
b = −4 i + 8j + 10 k
c = − 2 i + 3 j − 5 k
Jika vektor a tegak lurus b, maka vektor a − c adalah.....
58 i + 23 j − 3k
− 58 i − 23 j + 3k
58 i + 23 j + 3k
− 58 i − 23 j − 3k
58 i − 23 j − 3k
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui titik A (3, 2, − 3 ), B(0, 4,−2) dan C(5, 3, −6). Sudut antara vektor AB dengan AC adalah...
30°
60°
90°
120°
135°
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