linear algebra

Question

STATE TRUE OR FALSE

cofactor and minor of an element in a matrix exists if and only if that matrix is a square matrix.

Answer 1

In linear algebra, a minor of a matrix A is the determinant of some smaller square matrix, cut down from A by removing one or more of its rows or columns. Minors obtained by removing just one row and one column from square matrices (first minors) are required for calculating matrix cofactors

Comments

@akash.dinkar12 @srestha Could you show with an example how to find minor of a rectangular matrix by removing one or more of its rows or columns? And what about cofactors in rectangular matrices?

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@priya  

http://math.tutorvista.com/number-system/minors-and-cofactors.html

U will get some help from this.....