Sendo que A = (1 2 0 1) e B = (1 2 1 1), calcule as matrizes x e y no sistema : { 2x + y = 3A + B
X - Y = 2A - 3 B
Soluções para a tarefa
Respondido por
3
0 1
1 2
1 1
2x+y=
3 6
0 3
+
1 2
1 1
=
4 8
1 4
x-y=
2 4
0 2
-
3 6
3 3
=
-1 -2
-3 -1
2x+y=
4 8
1 4
x-y=
-1 -2
-3 -1
2x-2y=
-2 -4
-6 -2
2x+y-2x+2y=3y
4 8
1 4
-
-2 -4
-6 -2
=
4 8
1 4
+
2 4
6 2
=
6 12
7 6
3y=
6 12
7 6
y=
2 4
7/3 2
2x+y=
4 8
1 4
=
2x+
2 4
7/3 2
4 8
1 4
=
2+2a 4+2b
(7/3)+2c 2+2d
4 8
1 4
=
2+2a 4+2b
(7/3)+2c 2+2d
4=2+2a
8=4+2b
1=(7/3)+2c
4=2+2d
2a=2
2b=4
2c=-4/3
2d=2
a=1
b=2
c=-4/6=-2/3
d=1
x=
1 2
-2/3 1
y=
2 4
7/3 2
1 2
1 1
2x+y=
3 6
0 3
+
1 2
1 1
=
4 8
1 4
x-y=
2 4
0 2
-
3 6
3 3
=
-1 -2
-3 -1
2x+y=
4 8
1 4
x-y=
-1 -2
-3 -1
2x-2y=
-2 -4
-6 -2
2x+y-2x+2y=3y
4 8
1 4
-
-2 -4
-6 -2
=
4 8
1 4
+
2 4
6 2
=
6 12
7 6
3y=
6 12
7 6
y=
2 4
7/3 2
2x+y=
4 8
1 4
=
2x+
2 4
7/3 2
4 8
1 4
=
2+2a 4+2b
(7/3)+2c 2+2d
4 8
1 4
=
2+2a 4+2b
(7/3)+2c 2+2d
4=2+2a
8=4+2b
1=(7/3)+2c
4=2+2d
2a=2
2b=4
2c=-4/3
2d=2
a=1
b=2
c=-4/6=-2/3
d=1
x=
1 2
-2/3 1
y=
2 4
7/3 2
Respondido por
2
0 1
1 2
1 1
2x+y=
3 6
0 3
+
1 2
1 1
=
4 8
1 4
x-y=
2 4
0 2
-
3 6
3 3
=
-1 -2
-3 -1
2x+y=
4 8
1 4
x-y=
-1 -2
-3 -1
2x-2y=
-2 -4
-6 -2
2x+y-2x+2y=3y
4 8
1 4
-
-2 -4
-6 -2
=
4 8
1 4
+
2 4
6 2
=
6 12
7 6
3y=
6 12
7 6
y=
2 4
7/3 2
2x+y=
4 8
1 4
=
2x+
2 4
7/3 2
4 8
1 4
=
2+2a 4+2b
(7/3)+2c 2+2d
4 8
1 4
=
2+2a 4+2b
(7/3)+2c 2+2d
4=2+2a
8=4+2b
1=(7/3)+2c
4=2+2d
2a=2
2b=4
2c=-4/3
2d=2
a=1
b=2
c=-4/6=-2/3
d=1
x=
1 2
-2/3 1
y=
2 4
7/3 2
1 2
1 1
2x+y=
3 6
0 3
+
1 2
1 1
=
4 8
1 4
x-y=
2 4
0 2
-
3 6
3 3
=
-1 -2
-3 -1
2x+y=
4 8
1 4
x-y=
-1 -2
-3 -1
2x-2y=
-2 -4
-6 -2
2x+y-2x+2y=3y
4 8
1 4
-
-2 -4
-6 -2
=
4 8
1 4
+
2 4
6 2
=
6 12
7 6
3y=
6 12
7 6
y=
2 4
7/3 2
2x+y=
4 8
1 4
=
2x+
2 4
7/3 2
4 8
1 4
=
2+2a 4+2b
(7/3)+2c 2+2d
4 8
1 4
=
2+2a 4+2b
(7/3)+2c 2+2d
4=2+2a
8=4+2b
1=(7/3)+2c
4=2+2d
2a=2
2b=4
2c=-4/3
2d=2
a=1
b=2
c=-4/6=-2/3
d=1
x=
1 2
-2/3 1
y=
2 4
7/3 2
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