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Show that A={bmatrix} -8 & 5 2 & 4 {bmatrix} satisfies the eq

Question

Show that $A = [- 8 2 54]$ satisfies the equation $A^{2} + 4 A - 42 I = O .$ Hence, find $A^{- 1} .$

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James Discussed

Show that

A = [- 8 2 54]

satisfies the equation

A^{2} + 4 A - 42 I = O .

Hence, find

A^{- 1} .

6 mins ago

Discuss this question LIVE

6 mins ago

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Question Text

Show that

A = [- 8 2 54]

satisfies the equation

A^{2} + 4 A - 42 I = O .

Hence, find

A^{- 1} .

Filo tutor solution