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Tamil Nadu Board of Secondary EducationHSC Science Class 12

Choose the correct alternative: If adj A = [2341] and adj B = [1-2-31] then adj (AB) is - Mathematics

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Question

Choose the correct alternative:

If adj A = `[(2, 3),(4, 1)]` and adj B = `[(1, -2),(-3, 1)]` then adj (AB) is

Options

  • `[(-7, -1),(7, -9)]`

  • `[(-6, 5),(-2, -10)]`

  • `[(-7, 7),(-1, -9)]`

  • `[(-6, -2),(5, -10)]`

MCQ

Solution

`[(-6, 5),(-2, -10)]`

shaalaa.com
Applications of Matrices: Solving System of Linear Equations
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Chapter 1: Applications of Matrices and Determinants - Exercise 1.8 [Page 49]

APPEARS IN

Samacheer Kalvi Mathematics - Volume 1 and 2 [English] Class 12 TN Board
Chapter 1 Applications of Matrices and Determinants
Exercise 1.8 | Q 17 | Page 49

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