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How can I calculate the value if adj. of a in a matrix simply?

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Mathematics for JEE Mains/Advanced, XI & XII (All Boards)

If you know that det of the matrix A then det(adj(A)) = ^(n-1, where n is the order of the matrix A (ofcourse square matrix)
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It is related to chapter MATRIX. Replace each element of the matrix by its cofactor. Then take the transpose of the resulting matrix. You get adjoint.
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Entrance coaching for JEE/CET (Physics, Chemistry n Maths)

You can program it also you have to go through the steps manually. If asked to use a property of adjoint matrix in any objective question, do so.
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Math require practice, Physics need Concepts

First: calculate minors Second: Find co-factors from minors (Minor with sign(+/-) is called co-factor Third: Arrange co-factors in a matrix Forth: put the elements in rows to columns in the co-factor matrix and the result is adjoint i.e. adj.
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Find cofactors of each element and take out the transpose.
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Mathematics, Statistics

what you want to calculate 1 a value 2. adj of a matrix 3 value of adj of matrix ??
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Computer wizard

Just follow the determinent form by multiplying each element and corresponding sings respectively.
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Bachelor of engineering in mechanical stream

Find cofactor of the matrix first and then take transpose of the matrix formed by cofactors
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