Find the inverse of the matrix $A =$ $[23 - 4 - 5]$ .

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Find the inverse of the matrix

A =

[23 - 4 - 5]

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Text solutionVerified

|A| =

∣ ∣ 23 - 4 - 5 ∣ ∣ = - 10 + ‘12 = 2 \neq = 0

∴ A^{- 1} = \frac{1}{a d - b c} [d - c - b a] = \frac{1}{2} [- 5 - 3 42]

⎣ ⎡ \frac{- 5}{2} \frac{- 3}{2} 21 ⎦ ⎤

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Question Text	Find the inverse of the matrix $A =$ $[23 - 4 - 5]$ .
Answer Type	Text solution:1
Upvotes	150