Question

It (2 x 2 3
3 X - 1
12x+3x+2.
is a symmetric matrix, then x​

Answer 1

Answer:

A=[

4

2x−3

x+2

x+1

]

Given A

T

=A

⇒[

4

x+2

2x−3

x+1

]=[

4

2x−3

x+2

x+1

]

Both are equal if corresponding elements are equal

⇒2x−3=x+2

⇒2x−x=3+2

⇒x=5