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Snegaa J. S.
Subject: Maths
, asked on 9/1/18
2nd one solve
Answer
1
Dipesh Malhotra
Subject: Maths
, asked on 8/1/18
24th
24
.
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,
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x
≠
0
,
y
≠
0
a
n
d
z
≠
0
.
2
x
-
3
y
+
3
z
=
10
,
1
x
+
1
y
+
1
z
=
10
a
n
d
3
x
-
1
y
+
2
z
=
13
Answer
1
Aashish Rohilla
Subject: Maths
, asked on 8/1/18
Solve this:
Q). If for any
2
×
2
square matrix A,
A
a
d
j
A
=
8
0
0
8
, then write the value of
A
.
Answer
1
Ritesh Ranjan Rath
Subject: Maths
, asked on 4/1/18
Q. Find A, if
i
f
4
1
3
A
=
-
4
8
4
-
1
2
1
-
3
6
3
Answer
1
Shivam Sharma
Subject: Maths
, asked on 4/1/18
How is Bt Cotton made to attain resistance against bollworms?
Answer
1
Shivam Sharma
Subject: Maths
, asked on 3/1/18
Answer fast...and No links plzz
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
No links please
C
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.
Q
)
I
f
A
=
2
2
4
3
,
s
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w
t
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a
t
A
A
-
1
=
I
2
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x
o
f
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r
d
e
r
2
.
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
No links please
Chapter name
Joint and inverse of a matrix and solution of linear simultaneous equations by matrix method .
Q
.
I
f
A
=
1
-
2
3
1
2
1
-
1
2
-
3
,
s
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p
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s
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e
s
s
a
n
i
n
i
n
v
e
s
e
.
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
No links please
C
h
a
p
t
e
r
N
a
m
e
:
A
d
j
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n
d
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m
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s
b
y
m
a
t
r
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x
m
e
t
h
o
d
.
Q
)
I
f
B
=
-
2
2
1
0
4
5
-
2
6
6
,
s
h
o
w
b
y
e
l
e
m
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n
t
a
r
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w
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s
t
h
a
t
B
-
1
d
o
e
s
n
o
t
e
x
i
s
t
.
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
No links please
Q.(i). If
A
=
5
-
8
-
5
8
, show by elementary row transformations that
A
-
1
does not exist.
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
No links please
F
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n
d
t
h
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n
v
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f
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m
a
t
i
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n
s
:
3
-
3
4
2
-
3
4
0
-
1
1
A
n
s
=
1
-
1
0
-
2
3
-
4
-
2
3
-
3
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
No links please
F
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n
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s
:
1
2
3
1
3
-
1
-
1
1
-
7
A
n
s
=
1
8
-
20
17
-
11
8
-
4
4
4
-
3
1
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
8
.
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s
:
i
)
2
-
1
4
4
0
2
3
-
2
7
\
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
No links please
Chapter name
Adjoint and inverse of a matrix and solution of Linear simultaneous equations by matrix method.
6.
​Find the inverse of each of the following matrices by using elementary column operation :
i
-
6
4
2
-
2
i
i
5
-
4
-
3
3
i
i
i
-
3
5
-
4
5
i
v
7
8
2
2
(
v
)
cos
θ
-
sin
θ
sin
θ
cos
θ
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 29/12/17
5
.
U
sin
g
e
l
e
m
e
n
t
a
r
y
r
o
w
-
t
r
a
n
s
f
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r
m
a
t
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s
f
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o
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f
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h
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f
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l
l
o
w
i
n
g
m
a
t
r
i
c
e
s
:
2
-
5
-
3
7
Answer
1
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What are you looking for?
Q). If for any square matrix A, , then write the value of .
Q. Find A, if
Chapter name
Joint and inverse of a matrix and solution of linear simultaneous equations by matrix method .
Q.(i). If , show by elementary row transformations that does not exist.
Chapter name
Adjoint and inverse of a matrix and solution of Linear simultaneous equations by matrix method.
6. ​Find the inverse of each of the following matrices by using elementary column operation :