AB=3x-4x2x-2xx0-x-xxx2x-2x2x5x-4x3x7x-5x
=x3-42-210-1-11 .x 12-225-437-5=x2100010001 =x2000x2000x2
অনুরূপভাবে, BA=x2000x2000x2
অতএব, AB = BA
অতএব, x2I⇒1x2A =B-1 I ⇒B-1=B-1=Ax2=3x-4x2x-2x1x0-1x-1x1x
অতএব, B-1=Ax2
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