[" If "A^(2)-3A+2I=0," then "],[[" (a) "A" is singular "," (b) "A^(-1)=(3I+A)/(2)],[" (c) "A^(-1)=(I-3A)/(2)," (d) "A^(-1)=(3I-A)/(2)]]

If A^(2)+A+I=0, then A is non-singular A!=0(b) A is singular A^(-1)=-(A+I)

If A^2+A+I=0 , then A is non-singular A!=0 (b) A is singular A^(-1)=-(A+I)

If A is non Singular and (A-2I)(A-4I)=0 then 1/6A+4/3A^(-1)=

If (1-i)x+(1+i)y=1-3i , then (x,y) is equal to (a) (2,-1) (b) (-2,1) (c) (-2,-1) (d) (2,1)

If (1-i)x+(1+i)y=1-3i , then (x,y) is equal to (a) (2,-1) (b) (-2,1) (c) (-2,-1) (d) (2,1)

If (1-i)x+(1+i)y=1-3i , then (x,y) is equal to (a) (2,-1) (b) (-2,1) (c) (-2,-1) (d) (2,1)

If A is non-singular and (A-2I)(A-4I)=0 , then (1)/(6)(A)+(4)/(3)(A^(-1))=

If A^(3) = O , then I + A + A^(2) equals a)I - A b) (I + A^(-1)) c) (I - A)^(-1) d)none of these

"If A" = [{:(1, 2), (1, 3):}] , then find A^(-1) + A . (a) I (b) 2I (c) 3I (d) 4I

If z=(-1)/(2)+i(sqrt(3))/(2) , then 8+10z+7z^(2) is equal to a) -(1)/(2)-i(sqrt(3))/(2) b) (1)/(2)+isqrt(3)/(2) c) -(1)/(2)+i(3sqrt(3))/(2) d) (sqrt(3))/(2)i