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RD Chapter 7 Adjoint and Inverse of a Matrix Ex 7.1 Solutions

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Question - 22 : -

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Question - 23 : -

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Question - 24 : -

Show that A3 -6A2 + 5A + 11I3 =Ο. Hence, find A-1.

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Question - 25 : -

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Question - 26 : -

Verify that A3 -6A2 + 9A - 4I =Ο and hence find A-1.

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