Misc 6 - Chapter 3 Class 12 Matrices

Last updated at July 30, 2026 by

Misc 6 - Find x, if [x -5 -1] [1 0 2 0 2 1 2 0 3] - Miscellaneous - Miscellaneous

part 2 - Misc 6 - Miscellaneous - Serial order wise - Chapter 3 Class 12 Matrices

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Misc 6 Find x, if [x -5 -1] [ā– 8(1&0&2@0&2&1@2&0&3)] [ā– 8(š‘„@4@1)] = O 怖"[x āˆ’5 āˆ’1]" 怗_(1Ɨ3) [ā– 8(1&0&2@0&2&1@2&0&3)]_(3Ɨ3) [ā– 8(š‘„@4@1)]_(3Ɨ1) = O 怖"[x(1) + (āˆ’5) (0) + (ā€“1)(2) x(0) +(ā€“ 5) (2) + (āˆ’1)0 x(2) + (ā€“ 5)(1) + (āˆ’1)(3)]" 怗_(1Ɨ3) [ā– 8(š‘„@4@1)] = O 怖"[x + 0 ā€“ 2 0 ā€“ 10 + 0 2x ā€“ 5 āˆ’ 3]" 怗_(1Ɨ3) [ā– 8(š‘„@4@1)]_(3Ɨ1)= O 怖"[x ā€“ 2 ā€“ 10 2x ā€“ 8]" 怗_(1Ɨ3) [ā– 8(š‘„@4@1)]_(3Ɨ1) = O 怖"[(x ā€“ 2)(x) + (āˆ’10) (4) + (2x āˆ’ 8) (1)]" 怗_(1Ɨ1) = O (xā€“ 2)x ā€“ 10 (4) + 2x ā€“ 8 (1) = 0 x2 ā€“ 2x ā€“ 40 + 2x ā€“ 8 = 0 x2 + 0 ā€“ 48 = 0 x2 ā€“ 48 = 0 x2 = 48 x = Ā±āˆš48 x = Ā±āˆš(4 Ɨ 4 Ɨ 3) x = Ā± 4āˆš3 Hence, x = Ā± 4āˆššŸ‘

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