" If "A" is matrix such that "A^(2)+A+2I=O" ,then which of the following is INCORRECT? "

If a is matrix such that A^(2)+A+2I=O , then which of the following is/are true ?

If a is matrix such that A^(2)+A+2I=O , then which of the following is/are true ?

If A is matrix such that A^(2) +A + 2I = O then which of the following is not true ?a)A is symmetric b)A is non - singular c) |A| ne O d) A^(-1) = - (1)/(2) (A+ I)

Which of the following is INCORRECT for N_(2)O ?

If A is a matrix such that A^(2)+A+2I=O the which of the following is/are true? A is non-singular A is symmetric A cannot be skew- symmetric A^(-1)=-(1)/(2)(A+I)

If A is a matrix of size nxxn such that A^(2) + A + 2I = O then

If A is a matrix of order mxx m such that A^(2) +A + 2I = O , then