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Classroom
Sequencing
High 11
Math
kuis operasi matriks
Berlinda Siskh
1
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# 1

Multiple Choice

Diketahui

A=(3214),B=(2132)A = \begin{pmatrix} 3 & 2 \\ 1 & 4 \end{pmatrix}, \quad B = \begin{pmatrix} 2 & 1 \\ 3 & 2 \end{pmatrix}A=(312424),B=(231212)

Hasil dari A+BA + BA+B adalah ....

  • A. (5346)\begin{pmatrix} 5 & 3 \\ 4 & 6 \end{pmatrix}(543636)


  • B. (1122)\begin{pmatrix} 1 & 1 \\ 2 & 2 \end{pmatrix}(121212)

  • C. (6448)\begin{pmatrix} 6 & 4 \\ 4 & 8 \end{pmatrix}(644848)

  • D. (5322)\begin{pmatrix} 5 & 3 \\ 2 & 2 \end{pmatrix}(523232)

# 2

Multiple Choice

Jika

C=(4−213)C = \begin{pmatrix} 4 & -2 \\ 1 & 3 \end{pmatrix}C=(4123−23)

dan k=2k = 2k=2, maka hasil dari k×Ck \times Ck×C adalah ....

A. (8−426)\begin{pmatrix} 8 & -4 \\ 2 & 6 \end{pmatrix}(8246−46)

  • A. (8−426)\begin{pmatrix} 8 & -4 \\ 2 & 6 \end{pmatrix}(8246−46)

  • B. (6−224)\begin{pmatrix} 6 & -2 \\ 2 & 4 \end{pmatrix}(6224−24)

  • C. (4−213)\begin{pmatrix} 4 & -2 \\ 1 & 3 \end{pmatrix}(4123−23)

  • D. (2−10.51.5)\begin{pmatrix} 2 & -1 \\ 0.5 & 1.5 \end{pmatrix}(20.511.5−11.5)

# 3

Multiple Choice

Diketahui

P=(1234),Q=(2012)P = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}, \quad Q = \begin{pmatrix} 2 & 0 \\ 1 & 2 \end{pmatrix}P=(132424),Q=(210202)

Hasil dari P×QP \times QP×Q adalah ....

  • A. (44108)\begin{pmatrix} 4 & 4 \\ 10 & 8 \end{pmatrix}(4104848)

  • B. (44810)\begin{pmatrix} 4 & 4 \\ 8 & 10 \end{pmatrix}(48410410)

  • C. (2266)\begin{pmatrix} 2 & 2 \\ 6 & 6 \end{pmatrix}(262626)

  • D. (54118)\begin{pmatrix} 5 & 4 \\ 11 & 8 \end{pmatrix}(5114848)

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