MATHEMATICS

JAMB 2012 - Question 23

Mathematics 2012 JAMB Past Questions - Question 23: If |5 3| =|3 5| , find the value of  x 2 4 5

If |5 3| =|3 5| , find the value of  x 2 4 5
A:
B:
C:
D:
Examkits App

Examkit's JAMB CBT App

Practice JAMB offline with our Online, PC and Mobile App

  • ✅ 25+ years of past questions (2000 to 2025)
  • ✅ Video solutions and explanation to questions
  • ✅ E-library
  • ✅ Study by topic
  • ✅ And more.

Correct Answer

C

Explanation

5 3 3 5,x 2 = 4 510 -3x = 15 -20- 3x = -15x =5The equation |5 3| = |3 5| implies that the determinant of the matrix on the left side is equal to the determinant of the matrix on the right side.The determinant of a 2x2 matrix [a b; c d] is given by the formula ad - bc.For the left side of the equation:|5 3| = 5 * 5 - 3 * 3 = 25 - 9 = 16For the right side of the equation:|3 5| = 3 * 5 - 5 * 3 = 15 - 15 = 0Since 16 is not equal to 0, the equation |5 3| = |3 5| is not true.Therefore, we cannot determine the value of x x 2 4 5 based on the given equation.

Frequently Asked Questions

Examkits is a JAMB CBT practice platform that provides over 20 years of past questions, Post UTME questions, and detailed video solutions to help students prepare for their exams.

You can practice JAMB past questions online, on Android, or on a desktop using the Examkits app. Just register on our website and choose your preferred device.

Yes. Our Android and Windows versions support offline usage. Once downloaded and activated, no internet is required to use most of the features.

Yes, Examkits provides detailed video explanations for all JAMB past questions from 2000 to 2024, helping students understand how to solve each problem.

Examkits offers free practice for some subjects. However, full access requires a one-time affordable activation fee for each version of the app.