1.

Inverse to be found by elementry transformation method.

Answer»

It is easy first find IAI i.e, 30-32= -2
then C that is I 10 -8 I
I -4 3I
transpose of C = I 10 -4 I
I -8 3I

inverse of A = 1/IAI* transpose of C
= -1/2* I 10 -4I
I -8 3l
= I -5 2 L
l 4 -3/2l



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