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# If a = [(3,1),(-1,2)] Show that Asqrt2 - 5a + 7i = O - CBSE (Commerce) Class 12 - Mathematics

ConceptOperations on Matrices Properties of Multiplication of Matrices

#### Question

if A = [(3,1),(-1,2)]  show that  A^2 - 5A + 7I = O

#### Solution

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Solution If a = [(3,1),(-1,2)] Show that Asqrt2 - 5a + 7i = O Concept: Operations on Matrices - Properties of Multiplication of Matrices.
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