
Operasi Matriks 3x3 dalam Kehidupan Sehari-hari
Authored by Siti Asiyah
Mathematics
11th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hitung hasil penjumlahan matriks A dan B berikut: A = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], B = [[9, 8, 7], [6, 5, 4], [3, 2, 1]].
[[10, 10, 10], [10, 10, 10], [10, 10, 10]]
[[12, 12, 12], [12, 12, 12], [12, 12, 12]]
[[1, 2, 3], [4, 5, 6], [7, 8, 9]]
[[8, 10, 8], [10, 10, 10], [10, 8, 8]]
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hitung hasil pengurangan matriks C dan D berikut: C = [[10, 11, 12], [13, 14, 15], [16, 17, 18]], D = [[1, 2, 3], [4, 5, 6], [7, 8, 9]].
[[8, 9, 10], [9, 9, 9], [9, 9, 9]]
[[5, 5, 5], [5, 5, 5], [5, 5, 5]]
[[10, 10, 10], [10, 10, 10], [10, 10, 10]]
[[9, 9, 9], [9, 9, 9], [9, 9, 9]]
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jelaskan sifat komutatif dalam penjumlahan matriks dan berikan contoh dengan matriks 3x3.
A + B = A / B
A + B = A * B
Sifat komutatif dalam penjumlahan matriks menyatakan A + B = B + A.
A + B = A - B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jelaskan sifat asosiatif dalam pengurangan matriks dan berikan contoh dengan matriks 3x3.
Contoh: A = [[1, 2, 3], [4, 5, 6]], B = [[1, 1, 1], [1, 1, 1]], dan C = [[1, 1, 1], [1, 1, 1]].
Contoh: Misalkan A = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], B = [[1, 1, 1], [1, 1, 1], [1, 1, 1]], dan C = [[2, 2, 2], [2, 2, 2], [2, 2, 2]]. Maka, (A - B) - C = [[1-1-2, 2-1-2, 3-1-2], [4-1-2, 5-1-2, 6-1-2], [7-1-2, 8-1-2, 9-1-2]] = [[-2, -1, 0], [1, 2, 3], [4, 5, 6]] dan A - (B + C) = A - [[3, 3, 3], [3, 3, 3], [3, 3, 3]] = [[1-3, 2-3, 3-3], [4-3, 5-3, 6-3], [7-3, 8-3, 9-3]] = [[-2, -1, 0], [1, 2, 3], [4, 5, 6]].
Contoh: A = [[1, 2], [3, 4]], B = [[1, 0], [0, 1]], dan C = [[0, 0], [0, 0]].
Contoh: A = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], B = [[0, 0, 0], [0, 0, 0], [0, 0, 0]], dan C = [[1, 1, 1], [1, 1, 1], [1, 1, 1]].
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Buktikan bahwa A + B = B + A untuk matriks A dan B yang diberikan.
B + A = A - B
A - B = B - A
A + B = A - B
A + B = B + A untuk matriks A dan B.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Buktikan bahwa (A + B) + C = A + (B + C) untuk matriks A, B, dan C yang diberikan.
(A + B) + (C + D) = A + B + C
(A + C) + B = A + (B + C)
A + (B + C) = (B + C) + A
(A + B) + C = A + (B + C)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika A = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], hitung 2A dan jelaskan sifat distributif yang digunakan.
[[1, 2, 3], [4, 5, 6], [7, 8, 9]]
[[0, 0, 0], [0, 0, 0], [0, 0, 0]]
[[3, 6, 9], [12, 15, 18], [21, 24, 27]]
[[2, 4, 6], [8, 10, 12], [14, 16, 18]]
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