Question

solve questions 8 hurry please ​

Answer 1

Step-by-step explanation:

use the proverty: if M and N are squee MATRIX then

(M+N)T=MT+NT(can u see why)

now add the equation a and b and do something else to obtain A.

Added: for a MATRIX to be symmetric it means if you take the transpose you get the same back. u start with A+AT. take transposed and use some property . (do u get what you started with)

hint::: (A+AT)T =A+AT

and(A-AT)T= -(A-AT)