Quiz Matriks

Quiz Matriks

7th Grade

26 Qs

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Quiz Matriks

Quiz Matriks

Assessment

Quiz

others

7th Grade

Practice Problem

Hard

Created by

Jamaluddin, S.Pd.I

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26 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui matriks A = \(\begin{bmatrix} 15 & 3 \\ 6 & 9 \end{bmatrix}\), B = \(\begin{bmatrix} 2 & x \\ 3 & 10 \end{bmatrix}\), dan C = \(\begin{bmatrix} 1 & -4 \\ 3 & -13 \end{bmatrix}\). Bila x merupakan penyelesaian dari persamaan A - B = C\(^1\), maka nilai x adalah...

3

5

7

9

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui matriks A = \(\begin{bmatrix} 3 & 0 \\ 2 & 5 \end{bmatrix}\), B = \(\begin{bmatrix} x & -1 \\ y & 1 \end{bmatrix}\), dan C = \(\begin{bmatrix} 0 & -1 \\ -15 & 5 \end{bmatrix}\). A\(^t\) adalah transpos dari A. Jika A\(^t\) . B = C maka nilai 2x + y = ...

-4

-1

1

5

7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Matriks x berordo (2 x 2) yang memenuhi \(\begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix} x = \begin{bmatrix} 4 & 3 \\ 2 & 1 \end{bmatrix}\) adalah ...

\(\begin{bmatrix} -6 & -5 \\ 5 & 4 \end{bmatrix}\)

\(\begin{bmatrix} 5 & -6 \\ 4 & 5 \end{bmatrix}\)

\(\begin{bmatrix} -6 & -5 \\ 4 & 5 \end{bmatrix}\)

\(\begin{bmatrix} 4 & -2 \\ -3 & 1 \end{bmatrix}\)

\(\begin{bmatrix} 12 & 10 \\ -10 & -8 \end{bmatrix}\)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui matriks A = \(\begin{bmatrix} 3 & -1 \\ 2 & -5 \end{bmatrix}\) dan A\(^2\) = Ax + Iy, x, y bilangan real, I matriks identitas dengan ordo 2 x 2. Nilai x + y = ...

-1

-3

5

11

15

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika \(\begin{bmatrix} 2 & 3 \\ 5 & -1 \end{bmatrix} \begin{bmatrix} x \\ y \end{bmatrix} = \begin{bmatrix} 7 \\ -8 \end{bmatrix}\), maka nilai x\(^2\) + y\(^2\) = ...

5

9

10

13

29

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika matriks A = \(\begin{bmatrix} 1 & 4 \\ 2 & 3 \end{bmatrix}\), maka nilai x yang memenuhi persamaan |A - xI| = 0 dengan I matriks satuan adalah...

1 dan -5

-1 dan -5

-1 dan 5

-5 dan 0

1 dan 0

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika x\(_1\) dan x\(_2\) adalah akar persamaan \(\frac{2x + 4}{x + 3} = 0\) dan x\(_1\) > x\(_2\) maka x\(_1^2\) + x\(_2^2\) = ...

4

14

24

34

49

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