Gimana sih cara perkalian matriks? ada latihan soal/contoh nya ga? dari web juga ngapapa ;)

Gimana sih cara perkalian matriks?
ada latihan soal/contoh nya ga? dari web juga ngapapa 😉

Jawaban Terkonfirmasi

$A. left[begin{array}{ccc}2&3end{array}right]$
B. $left[begin{array}{ccc}-2\5end{array}right]$
C. $left[begin{array}{ccc}1&4\6&3end{array}right]$
D. $left[begin{array}{ccc}3&1\2&0\7&5end{array}right]$
dit: a. A X B
b : D X C
c. C X D

a. $left[begin{array}{ccc}2&3end{array}right]$ x $left[begin{array}{ccc}-2\5end{array}right]$
= $left[begin{array}{ccc}2.-2+3.5end{array}right]$
= $left[begin{array}{ccc}-4 + 15end{array}right]$
= $left[begin{array}{ccc}11end{array}right]$

b. $left[begin{array}{ccc}3&1\2&0\7&5end{array}right]$ x $left[begin{array}{ccc}1&4\6&3end{array}right]$
= $left[begin{array}{ccc}3.1+1.6&3.4+3.1\2.1+0.6&2.4+2.3\7.1+5.6&7.4+5.3end{array}right]$
= $left[begin{array}{ccc}3+6&12+3\2+0&8+6\7+30&28+15end{array}right]$
= $left[begin{array}{ccc}9&15\2&8\37&43end{array}right]$

yg c tdak bsa di kalikan!

Jawaban Terkonfirmasi

A = { 1 2 } B = { 2 1 } C = { 4 1 }
{ 3 4 } { 3 4 } { 2 3 }
Tentukanlah:
a. AB;
b. BC;
c. A (BC)
d. (AB) C

a. AB

| 1 2 | | 2 1 |
| 3 4 | | 3 4 |

| 1×2+ 2×3 1×1+2×4 |
| 3×2+4×3 3×1+4×4 |

| 8 9 |
| 18 19|
b sama caranya kaya opsi a
c. BC <== kalilan dulu ini baru dikalikan ke A
d. caranya sama seperti option c