Question

the question is in the pic

Answer 1

. . .

Answer 2

I see two questions

Answer 3

yeah can u help me with it @Mokeira

Answer 4

ok first find AB

Answer 5

okay then

Answer 6

mokeira that is wrong :o

Answer 7

okay whats the right answer ??
@Ikram002

Answer 8

@ikram002p ooops... please take us through

Answer 9

ok ur idea is correct , but u did multiple a*b wrong
you should do it like this :-
\(\begin{bmatrix}
5 & 2 & 3\\
1& -4 & 3\\
3& 1 & 2
\end{bmatrix} \begin{bmatrix}
a & 1 & -18\\
b& -1 & 12\\
-13 & -1 & c
\end{bmatrix} \\ =\begin{bmatrix}
5a+2b-(3*13)&5-2-3 & -18(5)+12*2+3c) \\
a-4b-13(3))& 1+4-3 & -18-(12*4)+3c\\
3a+b-13*2 & 3-1-2 & -18*3+12+2c
\end{bmatrix} =\begin{bmatrix}
2 & 0& 0\\
0& 2 &0 \\
0& 0 & 2
\end{bmatrix} \)

Answer 10

hehe solve equations :P

Answer 11

okay what about the other question ??

Answer 12

oooooh, i see what I did wrong

Answer 13

5a+2b-(3*13)=2
a-4b-(3*`13)=0
3a+b-(13*2)=0
-18(5)+12*2+3c=0
-18-(12*4)+3c=0
-18*3+12+2c=2

Answer 14

hehe find a,b,c :P

Answer 15

okay i can now solve it but can do the other question

Answer 16

hmmm not sure :P

Answer 17

i hate word problem questions :P