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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Mathematics (MA)
Please give me solutions and correct options for these questions
1.1. If A = S02 3. Let A =|0I 0| and I be a 3 x3 -I 0and cOs 6 sin unit matrix. Then rank of (I- A) is i)0 Gi)1 (cii) 2 (6iv)3 -sin cos nen which one of the following relations is true ? i) C A cos -B sin O0 (1) C=A sin 6+ B cos ii) C=A sin 6-B cos 6 (iv) C=A cos 6+ B sin 6 1.6. Let A = where a, b are non- zero real numbers. If M= Aam for some positive integer m, then which one of the following iS true ? 1.2/If A) denotes the rank of a matrix A, then r(AB) )M= (i) = r{A) (ii)= r(B) Cii) S min[r(A), r(B)] (i) M=(am+bm Ci) M=(b) 9M-R+ro 1TA=. then A"is n (iv) > min[r{A), r(B). 13. x then X equals ) o HA= 4 then A(adjA) equals 10 o10 (i) 10 10 0) 10 1, 10 ii1 10) (iv) 10
3 Answer(s)
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Kiran goswami
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see attachment Q1 ans options 4 Q2 answer option 3 Q3 answer option 1 Q4 answer option 1
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Ruby negi
see this solution too..
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Ruby negi
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see this solution
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Surabhi
questions:-1,2,3,4,5,6,7
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Deepak singh 1
solution of 1,2,3,4 , see attached
any doubt?
1- d option, 2 -c option, 3 - a option, 4 - a option
accept the answer if no doubt