Álgebra Linear e Geometria Analítica - Univates

UNIVATES – Centro Universitário 84
5.4.23 X = A + B =
5.4.25
6 2 4
3 4 5
3 4 11
, Y = 2A − B =
0 −4 4
Janeiro Fevereiro
Transistores 96 84
Capacitores 156 132
Resistores 208 170
⎛
5
⎞
−2
5.4.31 ⎝ 4 −1 ⎠
15 −3
5.4.32
9
−6
5.4.33
−4
5
−8
9
5.4.34
6
9
6
9
10
15
−2
−3
5.4.35
−5
0
0
= −5I2
−5
⎛
−5
⎞
11
5.4.36 ⎝ −8 23 ⎠
−11 35
⎛
6 0
⎞
1
5.4.37 ⎝ −3 1 4 ⎠
2 2 1
10 39
5.4.47 A(BC) = (AB)C =
,
10 −17
4 26
(A + B)C = AC + BC =
−2 29
5.4.51 Não, pois AB = BA
5.4.53
−1
0
0
= −I2
−1
5.4.59 ABt
9 −2
=
, BA
11 0
t
9 11
=
, (AB)
−2 0
t
6
=
4
A
8
9
tBt
19 −14
=
, B
7 −4
tAt = (AB) t
19 7
, BA =
−14 −4
5.4.60
14
−4
−4
5
,