Choose correct alternative for the following question. To solve x + y = 3; 3x – 2y – 4 = 0 by determinant method find D. - Algebra

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MCQ
Sum

Choose correct alternative for the following question.

To solve x + y = 3; 3x – 2y – 4 = 0 by determinant method find D.

Options

  • 5

  • 1

  • −5

  • −1

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Solution

x + y = 3
3x – 2y – 4 = 0
∴ 3x – 2y = 4

`"D" = |(1, 1), (3, -2)| = 1 × (-2) –  1 × 3 = –  2 –  3 = –  5`

Hence, the correct answer is option −5. 
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Chapter 1: Linear Equations in Two Variables - Problem Set 1 [Page 27]

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Balbharati Maths 1 Algebra 10th Standard SSC Maharashtra State Board
Chapter 1 Linear Equations in Two Variables
Problem Set 1 | Q 1.4 | Page 27

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