Find the value of the determinant |5 3; -7 -4|

Choose correct alternative.

Find the value of \(\begin{vmatrix} 5 & 3 \\ -7 & -4 \end{vmatrix}\)

(A) −1 (B) −41 (C) 41 (D) 1

Doubtly Asked 24 Oct 2026 Save WhatsApp Report

1 answer

Answer: (D) 1

\[\begin{vmatrix} 5 & 3 \\ -7 & -4 \end{vmatrix} = 5(-4) - 3(-7)\]\[= -20 + 21 = 1\]

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

Was this answer helpful?