diketahui vektor a= ( 1, 2, -3), b= (3, 0, 5) dan c=(-2, -4, 1), dan d = 2a +b -c. maka vektor 2d adalah ...
PTS MTK PEMINATAN KELAS X

Quiz
•
Mathematics
•
10th Grade
•
Hard
muksin alatas
Used 423+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
5i + 6j+ k
14i + 16j- 4k
10i + 12j+ 2k
14i - 16j- 4k
14i + 16j- 8k
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
diketahui bahwa (1,2,-3), (4,4,m) dan (3, -4, 5). jika vektor a tegak lurus b, maka hasil dari 2a + 4b -2c = ...
(6, 14, 0)
(6, 14, 12)
(12, 28, 0)
(12, -28, 0)
(-12, 28, 0)
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
diketahui bahwa vektor a= i + 2j - 4k dan vektor b=(4,2,2m). jika vektor a tegak lurus vektor b maka nilai dari 10m adalah ...
20
16
12
10
8
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
diketahui vektor a = (1, 2, -x), b=(3,-2,1) dan c=(2,1,2). jika vektor a tegak lurus c, maka nilai dari (a+b).(a-c) adalah ...
-4
-2
0
1
2
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
diketahui vektor a = i + 2j - xk, dan d =2i + j + 2k. jika vektor a tegak lurus d, maka nilai dari 3x+2 adalah ...
12
8
4
5
-1
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
jika dan adalah dua vektor satuan yang membentuk sudut , maka = ...
1+
1-
2 +
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
diketahui vektor a, b, dan c adalah vektor satuan yang membentuk segitiga sama sisi, nilai dari (a+b).(b-c) = ...
1/8
1/4
1/2
1
2
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