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If A is a square matrix and A² = A, then (I + A)² - 3A is equal to :
If A = [aᵢⱼ] is an identity matrix, then which of the following is true ?
Choose the correct answer
If a square matrix A is such that A² = A and (I – A)³ = xA + I, then value of x must be :
If A = [[1, 2, 2], [2, 1, 2], [2, 2, 1]], then compute A² − 4A – 5I.
If matrix A = [[-p, q], [r, p]] is such that A² = I, then :
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