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JEE Main · Matrices and Determinants · Quiz

Matrices and Determinants — quick quiz

5 real JEE Main questions on Matrices and Determinants. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

MEDIUM

A square matrix A of order 3 satisfies A^2 - 5A + 7I = O, where I is the identity matrix and O is the null matrix. If A is non-singular, what is A^(-1) equal to?