plz solve this question
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option 4 is the answer
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1
Answer: (4)
Step-by-step explanation:
Let A =
∴ A⁻¹ = 1/|A| [|A| = adj.Matrix.
we know,
|A| = ad - bc
Now in our math,
= A
|A| =
= 1
so,
A⁻¹ = 1/1
=
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