Thanu Dharshani posted an Question
June 02, 2021 • 02:08 am 30 points
  • IIT JAM
  • Mathematics (MA)

If a is of n×n matrix with rank 3.let b is involuntary matrix of order n. ab is??

if A is of n×n matrix with rank 3.let B is involuntary matrix of order n. AB is?? a) involuntary b) idempotent c) non singular d) singular

1 Answer(s) Answer Now
  • 0 Likes
  • 2 Comments
  • 0 Shares
  • Thanu dharshani 1

    how det of a is zero

    eduncle-logo-app

    by the definition of rank of matrix if rank(A)

    eduncle-logo-app

    if n=3??

    eduncle-logo-app

    if n=3 then Det(A) not equal to zero...and det(B) is + - 1 .....det(AB) also not equal to zero....in this case AB is nonsingular

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers