Choose Correct Alternative for the Following Question. Find the Value of ∣ ∣ ∣ 5 3 − 7 − 4 ∣ ∣ ∣ A) –1 (B) –41 (C) 41 (D) 1 - Algebra

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MCQ
Sum

Choose correct alternative for the following question.
Find the value of \[\begin{vmatrix}5 & 3 \\ - 7 & - 4\end{vmatrix}\]

Options

  • –1

  • –41

  • 41

  • 1

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Solution

\[\begin{vmatrix}5 & 3 \\ - 7 & - 4\end{vmatrix} = 5 \times \left( - 4 \right) - 3 \times \left( - 7 \right) = - 20 + 21 = 1\]
Hence, the correct answer is 1.
  Is there an error in this question or solution?
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 1.3 | Page 27

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