If A=[0 b -2

           3 1 3

           2a 3 -1] is a symmetric matrix find value of A and B

Asked by ashik24102002 | 9th Jun, 2019, 01:30: PM

Expert Answer:

begin mathsize 16px style straight A equals open square brackets table row 0 straight b cell negative 2 end cell row 3 1 3 row cell 2 straight a end cell 3 cell negative 1 end cell end table close square brackets
straight A space is space symmetric space matrix.
rightwards double arrow straight A apostrophe equals straight A
rightwards double arrow open square brackets table row 0 3 cell 2 straight a end cell row straight b 1 3 row cell negative 2 end cell 3 cell negative 1 end cell end table close square brackets equals open square brackets table row 0 straight b cell negative 2 end cell row 3 1 3 row cell 2 straight a end cell 3 cell negative 1 end cell end table close square brackets
Equality space of space matrices space we space get
rightwards double arrow straight b equals 3 comma space 2 straight a equals negative 2
rightwards double arrow straight a equals negative 1 space and space straight b equals 3 end style

Answered by Sneha shidid | 9th Jun, 2019, 07:24: PM