CBSE Class 12-science - Minors and Co-factors Videos
Concepts on minors and cofactors of determinants
Find minors & cofactors of determinants and hence evaluate the determinants of order 3. Discuss Singular matrix.
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Concepts on determinants
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Concepts on minors and cofactors of determinants
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Concepts on ad joint, inverse of matrix
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About properties of determinants
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Revising properties of determinants
- Define co-factor of an element of matrix.
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Find the cofactors of all the elements of the determinant
.
- Define adjoint of a matrix.
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Find the Adj A for matrix A =
- Define singular matrix.
- Show that a matrix A is invertible, if and only if A is non-singular.
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If
, verify that (AB)–1 = B–1A–1.
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Find the matrix A, which satisfy the matrix equation,
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Show that A =
satisfy the equation x2 – 5x – 14 = 0.
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Find the inverse of A, if
