If A is a square matrix of order 2 and A−1=10adjA, then find ∣3A∣

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If A is a square matrix of order 2 and A^{-1}={adjA}{10}, then

Question

If A is a square matrix of order $2$ and $A^{- 1} = \frac{a d j A}{10}$ , then find $∣3 A ∣$

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Elizabeth Discussed

If A is a square matrix of order

2

and

A^{- 1} = \frac{a d j A}{10}

, then find

∣3 A ∣

10 mins ago

Discuss this question LIVE

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Question Text

If A is a square matrix of order

2

and

A^{- 1} = \frac{a d j A}{10}

, then find

∣3 A ∣