Find if possible the matrices: a) AB b) BA. A=begin{bmatrix}3 & -2 1 & 5 end{bmatrix} , B=begin{bmatrix}0 & 0 5 & -6 end{bmatrix}

opatovaL

opatovaL

Answered question

2021-02-25

Find if possible the matrices:
a) AB b) BA.
A=[3215],B=[0056]

Answer & Explanation

Arnold Odonnell

Arnold Odonnell

Skilled2021-02-26Added 109 answers

Step 1
It is given that,
A=[3215],B=[0056]
We have to find if possible the matrices:
a) AB b) BA.
Step 2
We have , A=[3215],B=[0056]
a) AB
AB=[3215][0056]
AB=[3×0+(2)53×0+(2)(6)1×0+5×51×0+5(6)]
AB=[10122530]
Hence , AB=[10122530]
b) BA
BA=[0056][3215]
BA=[0×3+0×10×(2)+0×55×3+(6)×15×(2)+(6)×5]
BA=[00940]
Hence , BA=[00940]
Jeffrey Jordon

Jeffrey Jordon

Expert2022-01-14Added 2605 answers

Answer is given below (on video)

Jeffrey Jordon

Jeffrey Jordon

Expert2022-08-23Added 2605 answers

Answer is given below (on video)

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