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Ishu 1 Asked a Question
November 7, 2021 8:16 pmpts 50 pts
  • IIT JAM
  • Mathematics (MA)

If a and bare 3x 3 matricer such that rank(ab) = 1.then, rank (ba) cannot be santosni family (a) 0 (b) 1 (c)2 (d) 3

If A and Bare 3x 3 matricer such that rank(AB) = 1.Then, rank (BA) cannot be Santosni Family (a) 0 (b) 1 (c)2 (d) 3
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  • Navdeep goyal 1 Best Answer
    rank(AB)=1 so |AB|=0 now |AB|=|A|.|B| =|B|.|A| =|BA| so |BA|=0 rank BA can't 3 bcz det (BA)=0
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