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Quiz Matriks dan Determinan

Authored by I Gusti Lanang Rai Subawa, S.Pd.

Mathematics

9th - 12th Grade

Quiz Matriks dan Determinan
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diberikan matriks A = [[1, 2] [3, 4]] dan B = [[5, 6], [7, 8]]. Hitunglah A + B.

[[6, 8], [10, 12]]

[[4, 4], [10, 10]]

[[5, 5], [5, 5]]

[[8, 8], [16, 16]]

[[10, 12], [14, 16]]

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diberikan matriks C = [[2, 0], [-1, 3]]. Tentukan hasil perkalian 2C.

[[4, 0], [-2, 6]]

[[2, 2], [-2, 6]]

[[2, 0], [-2, 3]]

[[4, 0], [1, 3]]

[[0, 0], [-1, 3]]

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jika D = [[1, 2], [3, 4]], maka nilai determinan dari matriks D adalah...

10

-2

2

-10

0

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diberikan matriks E = [[0, 1], [-1, 0]]. Apakah E adalah matriks inversibel?

Ya, karena determinannya 1

Tidak, karena determinannya 0

Ya, karena matriksnya simetris

Tidak, karena tidak memenuhi syarat matriks invers

Ya, karena determinannya -1

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diberikan matriks F = [[3, 2], [1, 4]]. Tentukan elemen pada posisi F21.

3

2

1

4

0

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diberikan matriks G = [[5, -2], [3, 1]]. Hitunglah G^-1 (invers dari G).

[[1/11, 2/11], [-3/11, 5/11]]

[[1/7, 2/7], [-3/7, 5/7]]

[[-1/11, 2/11], [3/11, 5/11]]

[[1/5, 2/5], [-3/5, 5/5]]

Tidak ada, karena matriks tidak memiliki invers

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diberikan matriks identitas I = [[1, 0], [0, 1]]. Hasil perkalian I x A untuk sembarang matriks A adalah...

0

Matriks A sendiri

Matriks identitas

Matriks nol

Matriks transpos dari A

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