Question

A=1 -1
-1 1 then show that a2=2a

Answer 1

Answer:

$a = - 11$

$if. \\ a = 1 - 1 - 11 \\ a = - 11 \\ when. \\ a2 = 2a \\ or. - 11 \times 2 = 2 \times - 11 \\ or. - 22 = - 22$