Question

\[\textbf{X} - \left[ \begin{array}{ccc} 0 & 1 & 2 \\ 3 & 4 & 5 \\ 6 & 7 &8i \end{array} \right] = \left[ \begin{array}{ccc} 8 & 7 & 6 \\ 5 & 4 & 3 \\ 2 & 1 & 0 \end{array} \right]\]

basically i need helpwith operations of matrices...

Answer 1

just add the first matrix to both sides

Answer 2

uhmm E33 us 8 not 8i

Answer 3

ahahah (dumudugo utak koh.. ) xD

Answer 4

@UnkleRhaukus like i said what i need help on is how to add matrices

Answer 5

lol @somebody11111 i think this is basic stuff :p

Answer 6

just add the elements

Answer 7

well for college..

Answer 8

Just add the corresponding elements.

Answer 9

uhmm again..i ask... *how*

Answer 10

out na akoh.. baka buong katawan ko naman dumugo. xD

Answer 11

Add 0 + 8
Add 1 + 7

etc

and then place them in the corresponding positions in the matrix

Answer 12

if i knew how to add 1 + 1 i wouldnt ask 1 + 1 lol..i'll expect someone to draw sticks to show 1 + 1 = 2

Answer 13

@ParthKohli seriously...HOW

Answer 14

im so tired of repeating the word =_=

Answer 15

A1 + A1 ===> Put that A1 in the new matrix
just like that

Answer 16

\[\textbf{X} - \left[ \begin{array}{ccc} 0 & 1 & 2 \\ 3 & 4 & 5 \\ 6 & 7 &8i \end{array} \right] = \left[ \begin{array}{ccc} 8 & 7 & 6 \\ 5 & 4 & 3 \\ 2 & 1 & 0 \end{array} \right]\]
\[\textbf{X} = \left[ \begin{array}{ccc} 0 & 1 & 2 \\ 3 & 4 & 5 \\ 6 & 7 &8 \end{array} \right] +\left[ \begin{array}{ccc} 8 & 7 & 6 \\ 5 & 4 & 3 \\ 2 & 1 & 0 \end{array} \right]\]

\[\textbf{X} = \left[ \begin{array}{ccc} 0 +8& 1+7 & 2+6 \\ 3+5 & 4+4 & 5+3 \\ 6+2 & 7+1 &8+0 \end{array} \right] \]

Answer 17

Did you understand? @lgbasallote

Answer 18

get it?

Answer 19

ahh so it's just like that..thanks!!

Answer 20

yep!!!

Answer 21

subtraction is just the same right?

Answer 22

Yeah

Answer 23

ok thanks again

Answer 24

note : you can only add matrices of the same size

Answer 25

hmm?

Answer 26

yep subtraction is just the same

Answer 27

\[\textbf{X} = \left[ \begin{array}{ccc} 8 & 8 &8 \\ 8 & 8 & 8 \\ 8 & 8 &8 \end{array} \right] \]

Answer 28

so what happens when it's 2 x 2 + 3 x 3? it remains the same?

Answer 29

You can't add:

\( \color{Black}{\Rightarrow \Large \left [\begin{array}{} {a \\ b} \end{array} \right ] + \left [ \begin{array}{} {c \\ d \\ e}\end{array}\right ]}\)

Etc.

Answer 30

\[\textbf{X} = 8\left[ \begin{array}{ccc} 1 & 1 &1 \\ 1 & 1 & 1 \\ 1 & 1 &1 \end{array} \right]\]

Answer 31

ahh that answers my second question..

Answer 32

constant * nxn matrix

Answer 33

so what happens in 2 x 2 + 3 x 3? it remains the same???

Answer 34

you can not simplify \[\textbf A_{nm}+\textbf B_{pq}\] if n≠p and/or m≠q

Answer 35

so...it remains the same? like x + y?