Question

What is the sum of entries a32 and b32 in A and B? (matrices)

Answer 1

`A={\begin{bmatrix}a_(11)&a_(12)&\cdots &a_(1n)\\a_(21)&a_(22)&\cdots &a_(2n)\\\vdots &\vdots &\ddots &\vdots \\a_(m1)&a_(m2)&\cdots &a_(mn)\end{bmatrix}}`

So

`a_(32)=4\\b_(32)=9\\\\a_(32)+b_(32)=4+9=13`

Answer 2

The correct answer is option D. 13

Explanation:

From the figure we can see two matrices A and B

To find the sum of a₃₂ and b₃₂

From the given attached figure we get

a₃₂ means that the third row second column element in the matrix A

b₃₂ means that the third row second column element in the matrix B

a₃₂ = 4 and b₃₂ = 9

a₃₂ + b₃₂ = 4 + 9

= 13

The correct answer is option D. 13