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If A = [aij] is an identity matrix, then which of the following is true?
If A is a square matrix and A² = A, then (I + A)² - 3A is equal to :
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If A = [0 1; −1 0] and (3I + 4A)(3I − 4A) = x²I, then the value(s) x is/are :
If A = [aᵢⱼ] is an identity matrix, then which of the following is true ?
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.
