1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Mathematics
Matrix Definition and Representation
If A + B = [...
Question
If A + B =
⎡
⎢
⎣
1
0
2
2
2
2
1
1
1
⎤
⎥
⎦
and A - B =
⎡
⎢
⎣
1
4
4
4
2
0
−
1
−
1
2
⎤
⎥
⎦
then prove that
A =
⎡
⎢
⎣
1
2
3
3
2
1
0
0
2
⎤
⎥
⎦
and B =
⎡
⎢
⎣
0
−
2
−
1
−
1
0
1
1
1
0
⎤
⎥
⎦
Open in App
Solution
Adding and subtracting we get 2A and 2B .Hence A and B are is given
Suggest Corrections
0
Similar questions
Q.
If
sin
-
1
2
a
1
+
a
2
-
cos
-
1
1
-
b
2
1
+
b
2
=
tan
-
1
2
x
1
-
x
2
,
then
prove
that
x
=
a
-
b
1
+
a
b
Q.
(i) If
tan
A
=
5
6
and
tan
B
=
1
11
, prove that
A
+
B
=
π
4
.
(ii) If
tan
A
=
m
m
-
1
and
tan
B
=
1
2
m
-
1
, then prove that
A
-
B
=
π
4
.
Q.
If
sin
-
1
2
a
1
+
a
2
+
sin
-
1
2
b
1
+
b
2
=
2
tan
-
1
x
,
prove
that
x
=
a
+
b
1
-
a
b
.
Q.
If
a
,
b
and
c
are all non-zero and
1
+
a
1
1
1
1
+
b
1
1
1
1
+
c
=
0, then prove that
1
a
+
1
b
+
1
c
+
1
=
0.
Q.
If
A
+
B
=
45
0
,
then prove that
(a)
(
1
+
tan
A
)
(
1
+
tan
B
)
=
2
(b)
(
cot
A
−
1
)
(
cot
B
−
1
)
=
2
(c)
A
−
B
=
3
π
4
,
then show that
(
1
−
tan
A
)
(
1
+
tan
B
)
=
2
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Matrix Definition and Representation
MATHEMATICS
Watch in App
Explore more
Matrix Definition and Representation
Standard XII Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app