Next Toppers - 12th Science
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Welcome to India's most trusted educational platform Next Toppers - 12th Science. Yahan Har science student ko milega average students ko topper banne ka ultimate mantra.
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Let A be a matrix such that AΒ³ = 0. Then (I – A)⁻¹ is equal to:
Anonymous Quiz
28%
a) I + A + AΒ²
29%
b) I – A + AΒ²
20%
c) I + A – AΒ²
23%
d) None of these
Let A and B be square matrices of same order such that AB = BA. Then which of the following is true?
Anonymous Quiz
42%
a) AB is always symmetric
31%
b) AB = BA is not always true
23%
c) A and B are simultaneously diagonalizable
4%
d) A and B are not invertible
If A is a 2Γ—2 matrix such that AΒ² = I, then which of the following is always true?
Anonymous Quiz
31%
a) A is symmetric
36%
b) A = I
25%
c) A is invertible
8%
d) A is skew-symmetric