Free account: track your progress — Sign up free

JAMB Mathematics 2013 Objective — Question 23

Question 23 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2013 Objective paper, with the correct answer and a full explanation.

Find the inverse of the matrix [5 3; 6 4].

A. A. [2 −3/2; −3 5/2]Correct
B. B. [2 −3/2; −3 5/2]
C. C. [2 −3/2; −3 −5/2]
D. D. [2 −3/2; −3 5/2]

Explanation

|A|=20−18=2; A⁻¹=(1/2)[4 −3;−6 5]=[2 −3/2;−3 5/2].

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Mathematics 2013 Objective More Mathematics past papers