Question

Product of matrix
(problem attached : if possible do all of not than I'm okay with a few ! )

Chapter : Matrices and Determinant
$\bf \star \: \: Thanks$ ​

Answer 1

Answer:

Here we will solve different types of Problems on Matrix Multiplication.

1. If A = [12−2113][1−21213] and B = ⎡⎣⎢231121⎤⎦⎥[213211], write down the matrix AB. Would it be possible to find the product of BA? If so, compute it, and if not, give reasons.

Solutions:

Here, matrix A is of the order 2 × 3 and matrix B is of the order 3 × 2.

So, the number of columns in A = the number of rows in B = 3.

So, AB can found.

AB = [12−2113][1−21213]⎡⎣⎢231121⎤⎦⎥[213211]

     = [1×2+(−2)×3+1×12×2+1×3+3×11×1+(−2)×2+1×12×1+1×2+3×1][1×2+(−2)×3+1×11×1+(−2)×2+1×12×2+1×3+3×12×1+1×2+3×1]

     = [−310−27][−3−2107], which is a matrix of the order 2 × 2.



0Save

Now, the number of columns in B = the number of rows in A = 2. So, BA can be found, and the order of BA is 3 × 3.

BA = ⎡⎣⎢231121⎤⎦⎥[213211]

MARK as BRAINLIEST please .. .....

Answer 2

Step-by-step explanation:

$hope \: it \: will \: help \: u \: nanba$

$have \: a \: great \: day$