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Misc 7 - For what values of x, [1 2 1] [1 2 0 2 0 1 1 0 2] - Miscellaneous

Misc. 7 - Chapter 3 Class 12 Matrices - Part 2

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Misc. 7 For what values of x, [1 2 1] [ 8(1&2&[email protected]&0&[email protected]&0&2)] [ 8([email protected]@ )] = O ? "[1 2 1]" _(1 3) [ 8(1&2&[email protected]&0&[email protected]&0&2)]_(3 3) [ 8([email protected]@ )]_(3 1) = O [ 8(1(1)+2(2)+1(1)&1(2)+2(0)+1(0)&1(0)+2(1)+1(2))]_(1 3) [ 8([email protected]@ )]_(3 1)= O "[ 1 + 4 + 1 2 + 0 + 0 0 + 2 + 2]" _(1 3) [ 8([email protected]@ )]_(3 1)= O "[6 2 4]" _(1 3) [ 8([email protected]@ )]_(3 1) = O "[6(0) + 2(2) + 4(x)]" _(1 1) = O "6(0) + 2(2) + 4(x)" = 0 0 + 4 + 4x = 0 4x = 4 x = ( 4)/4 x = 1 Hence the required value of x is 1

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.