If for a square matrix A, A^2 = A then such a matrix is known as _________(a) Idempotent matrix(b) Orthagonal matrix(c) Null matrix(d) None of the mentionedI got this question in an internship interview.The above asked question is from Operations on Matrices topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

If for a square matrix A, A^2 = A then such a matrix is known as _____

1.	If for a square matrix A, A^2 = A then such a matrix is known as _________(a) Idempotent matrix(b) Orthagonal matrix(c) Null matrix(d) None of the mentionedI got this question in an internship interview.The above asked question is from Operations on Matrices topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics
Answer» Right choice is (a) Idempotent matrix Easy EXPLANATION: A SQAURE matrix is called an Idempotent matrix, if A^2 = A.

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