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Zia
Subject: Maths
, asked on 4/4/18
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=
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.
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A
n
=
1
n
n
(
n
+
1
)
2
0
1
n
0
0
1
Answer
2
Zia
Subject: Maths
, asked on 4/4/18
If A and B are square matrices of the same order, then prove that A and B commute if A-λI and B-λI commute for any scalar λ.
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
My question is from Matrices grade 12 ... no links please
Q
.
I
f
a
≠
0
a
n
d
A
=
a
1
0
a
,
t
h
e
n
p
r
o
v
e
A
n
=
a
n
n
a
n
-
1
0
a
n
n
∈
N
.
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
My question is from Matrices grade 12 ... no links pls:
Let
A
=
0
1
-
1
0
,
Find
x
and
y
such
that
xI
+
y
A
2
=
A
.
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
If
A
=
2
3
-
1
2
and
f
x
=
x
2
-
4
x
+
7
, show that
f
(A) = 0. Use this find A
5
.
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
M
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q
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t
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f
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M
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12
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t
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f
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m
a
t
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s
cos
2
θ
cos
θ
sin
θ
sin
θ
cos
θ
sin
2
θ
a
n
d
cos
2
ϕ
cos
ϕ
sin
ϕ
sin
ϕ
cos
ϕ
sin
2
ϕ
i
s
a
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m
a
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i
x
i
f
θ
a
n
d
ϕ
d
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f
f
e
r
b
y
o
d
d
m
u
l
t
i
p
l
e
o
f
π
2
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
U
sin
g
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n
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a
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.
.
.
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l
i
n
k
s
p
l
s
.
.
.
1
2
2
2
1
2
2
2
1
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
U
sin
g
r
o
w
e
l
e
m
e
n
t
a
r
y
t
r
a
n
f
o
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m
a
t
i
o
n
f
i
n
d
t
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e
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.
.
.
n
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l
i
n
k
s
p
l
s
.
.
.
1
2
5
2
3
1
-
1
1
1
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
U
sin
g
r
o
w
e
l
e
m
e
n
t
a
r
y
t
r
a
n
f
o
r
m
a
t
i
o
n
f
i
n
d
t
h
e
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v
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t
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e
f
o
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l
o
w
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g
.
.
.
n
o
l
i
n
k
s
p
l
s
.
.
.
1
2
3
2
5
7
-
2
-
4
-
5
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
Using row elementary transformation find the inverse of the following... no links please...
1
-
2
3
0
-
1
4
-
2
2
1
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
Using row elementary transformation find the inverse of the following... no links please...
2
-
1
4
4
0
2
3
-
2
7
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
Q. Using row elementary tranformation find the inverse of the following matrix
1
2
5
2
3
1
-
1
1
1
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
Q. Using row elementary tranformation find the inverse of the following matrix
1
2
3
2
5
7
-
2
-
4
-
5
Answer
2
Zia
Subject: Maths
, asked on 4/4/18
Q. Using row elementary transformation find the inverse of the following matrix
1
-
2
3
0
-
1
4
-
2
2
1
Answer
1
Zia
Subject: Maths
, asked on 4/4/18
Q. Using row elementary transformation find the inverse of the following
2
-
1
4
4
0
2
3
-
2
7
Answer
1
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