Question

A e b sao duas matrizes quadradas de ordem 2cujos elementos sao dados por aij=3i -2j e bij=2i-j calcule a+ b

Answer 1

(a11. a12)
(a21. a22)
aij=3i-2j
a11=3.1-2.1
a11=3-2
a11=1
aij=3i-2j
a21=3.2-2.1
a21=6-2
a21=4
aij=3i-2j
a12=3.1-2.2
a12=3-4
a12=-1
aij=3i-2j
a22=3.2-2.2
a22=6-4
a22=2
(b11. b12)
(b21. b22)
bij=2i-j
b11=2.1-1
b11=2-1
b11=1
bij=2i-j
b21=2.2-1
b21=4-1
b21=3
bij=2i-j
b12=2.1-2
b12=2-2
b12=0
bij=2i-j
b22=2.2-2
b22=4-2
b22=2
A=(1. -1). B=(1. 0)
(4. 2). (3. 2)
1+1=2
-1-0=-1
4+3=7
2+2=4
(2. -1)
(7. 4)