Surabhi posted an Question
July 03, 2020 • 23:44 pm 30 points
  • IIT JAM
  • Mathematics (MA)

1.59 please give me explanation and option

.9 Let X = {". *2 be al Xn non zero vector such that xtz..x, # 0 and M = X*. Then rank(M) is (i) (i)1 i) 2 (ii) n - 1 (iv) .

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    Ujjawal vishal best-answer

    rank(AB) ≤rank(A).rank(B) so here rank (xxt)≤1. since x is non zero matrix, so rank (xxt)=1

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