Let x be anx1 vector such that x'x = 5, where x is the transpose of x define a=1-5x x, where i is the nth order identity matrix. which of the following statemen

Let x be anx1 vector such that x'x = 5, where x is the transpose of x Define A=1-5x x, where I is the nth order identity matrix. Which of the following statement is not true ? (A) A = A A =I (B) (C) Eigen values of A are unit modulo 1 Trace A =n 25 (D)