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Maths-

General

Easy

Question

If A = $open square brackets table row cell cos invisible function application theta end cell cell negative sin invisible function application theta end cell 0 row cell sin invisible function application theta end cell cell cos invisible function application theta end cell 0 row 0 0 1 end table close square brackets$ , then -

adj A = A
adj A = A^–1
A^–1 = –A
None of these

The correct answer is: adj A = A^–1

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