Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Let
P
=
[
a
2
3
4
b
6
7
8
c
]
P = \begin{bmatrix} a & 2 & 3 \\ 4 & b & 6 \\ 7 & 8 & c \end{bmatrix}
P
=
a
4
7
2
b
8
3
6
c
. If
P
+
P
T
=
[
10
6
10
6
14
14
10
14
20
]
P + P^{T} = \begin{bmatrix} 10 & 6 & 10 \\ 6 & 14 & 14 \\ 10 & 14 & 20 \end{bmatrix}
P
+
P
T
=
10
6
10
6
14
14
10
14
20
, determine
(
a
,
b
,
c
)
(a,\,b,\,c)
(
a
,
b
,
c
)
. a)
(
10
,
14
,
20
)
(10,14,20)
(
10
,
14
,
20
)
b)
(
10
,
7
,
5
)
(10,7,5)
(
10
,
7
,
5
)
c)
(
5
,
7
,
10
)
(5,7,10)
(
5
,
7
,
10
)
d)
(
5
,
7
,
20
)
(5,7,20)
(
5
,
7
,
20
)
Browse the problem library