" If matrix "A=[[1,2,2],[2,1,-2],[a,2,b]]" satisfies "AA^(T)=9I," then "(a,b)=

Select the correct options from the given alternatives:If A=[[1,2,2],[2,1,-2],[a,2,b]] is a matrix satisfying the equation A.A^T=9I ,where I is the identity matrix of order 3,then the paired (a,b) is equal to

If 3A-[[1,2,2],[2,1,-2],[x,2,y]] and "A^(T)A-AA^(T)-I , then xy is equal to

If A = [(1,2,2),(2,1,-2),(a,2,b)] is a matrix satisfying A A^(T) = 9I_(3) , then the values of a and b are respectively A)1, 2 B) -1, 2 C) -1, -2 D) -2, -1

If matrix A=[[1,2,3]], write AA^(T)

If A=[(1,2,2),(2,1,-2),(x,2,y)] is a matrix such that "AA"^(T) =9I , find the values of x and y.

if A=[(1,2,2),(2,1,-2),(a,2,b)] is a matrix satisfying A A'=9I_(3,) find the value of |a|+|b|.

if A=[(1,2,2),(2,1,-2),(a,2,b)] is a matrix satisfying A A'=9I_(3,) find the value of |a|+|b|.

if A=[(1,2,2),(2,1,-2),(a,2,b)] is a matrix satisfying A A'=9I_(3,) find the value of |a|+|b|.

If A=(1)/(3){:[(-1,2,-2),(-2,1,2),(2,2,1)] show that "AA"^(T)=I .

If A=[(1,2,2),(2,1,-2),(a,2,b)] is a matrix satisfying the equation A A^T=9I , where I is 3xx3 identity matrix, then the ordered pair (a,b) is equal to : (A) (2,-1) (B) (-2,1) (C) (2, 1) (D) (-2,-1)