Posted on April 28, 2022by Raji 1. If | adj(adj A) |=| A |9 , then the order of the square matrix A is 3 4 2 5 2. If A is a 3× 3 non-singular matrix such that AAT = AT A and B = A−1 AT , then BBT = A B I3 BT 1/3 1/9 1/4 1 1 2 3 4 1 2 3 4 -40 -80 -60 -20 15 12 14 11 0 -2 -3 -1 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 -4/5 -3/5 3/5 4/5 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 0 1 2 3 1/2 1 2 3 1 2 3 4 1 2 3 5 1 2 3 4 1 2 3 4 1 2 3 4 25. If z is a complex number such that z ∈ C \ R and z + 1/z ∈ R , then | z | is 0 1 2 3 26. z1 , z3 , and z3 are complex numbers such that z1 + z2 + z3 = 0 and | z1 | =| z2 | =| z3 | = 1 then z 2 + z 2 + z 2 is 3 2 1 0 27. A zero of x3 + 64 is 0 4 4i -4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Time's up
