Monomath – CBSE | GSEB | IB | JEE Maths by Ajay Yadav (Math King of Katargam) – 15+ Years Experience. Study Notes, Video Lessons, Formula Sheets & PYQs.
← Back to chapters

Determinants

Previous Year Questions (2022-2024)

📅 Year 2022

  1. Find area of triangle with vertices (3,8), (-2,2), (5,1).
    Show Solution
    Area = 12|3(2-1) + (-2)(1-8) + 5(8-2)|\n= 12|3 + 14 + 30| = 47/2 = 23.5 sq units
  2. Find det of [[1,2,3],[0,1,4],[5,6,0]].
    Show Solution
    det = 1(0-24) - 2(0-20) + 3(0-5)\n= -24 + 40 - 15 = 1

📅 Year 2023

  1. Find area of triangle with vertices (3,8), (-2,2), (5,1).
    Show Solution
    Area = 12|3(2-1) + (-2)(1-8) + 5(8-2)|\n= 12|3 + 14 + 30| = 47/2 = 23.5 sq units
  2. Find det of [[1,2,3],[0,1,4],[5,6,0]].
    Show Solution
    det = 1(0-24) - 2(0-20) + 3(0-5)\n= -24 + 40 - 15 = 1

📅 Year 2024

  1. Find area of triangle with vertices (3,8), (-2,2), (5,1).
    Show Solution
    Area = 12|3(2-1) + (-2)(1-8) + 5(8-2)|\n= 12|3 + 14 + 30| = 47/2 = 23.5 sq units
  2. Find det of [[1,2,3],[0,1,4],[5,6,0]].
    Show Solution
    det = 1(0-24) - 2(0-20) + 3(0-5)\n= -24 + 40 - 15 = 1