Matrix theory question, please help!
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Matrix theory question, please help!

[From: ] [author: ] [Date: 11-09-23] [Hit: ]
When I check the answer the solutions sheet says it is wrong.What have I done wrong?What is the right way of multiplying matrices?-You havent done anything wrong; you multiplied the matrices correctly.Believe it or not, the solution manual seems to be wrong on this one as you have the correct answer for BC.......
B=
(4 0 1 1
0 1 1 3 )

C=
(1 0
3 6
2 0
3 3)
I need to multiply BxC.
my lecture notes say that I must multiply the rows against the columns in C.I multiplied Row 1 of B against column 1 and 2 of C and Row 2 of B against Column 1 and 2 of B.

When I check the answer the solutions sheet says it is wrong.

I get BC=
(9 3
14 15 )


The solution says the correct answer is :
9 14
3 15

What have I done wrong?
What is the right way of multiplying matrices?

-
You haven't done anything wrong; you multiplied the matrices correctly.

Believe it or not, the solution manual seems to be wrong on this one as you have the correct answer for BC.
1
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