If `A=[1 2 0-1 1 2 2-1 1],t h e ndet(A d j(A d jA))=` 13 (b) `13^2` (c) `13^4` (d) None of these

If A=[(1,2,0),(-1,1,2),(2,-1,1)] then det (Adj(AdjA))= (A) 13 (B) 13^2 (C) 13^4 (D) none of these

If A=[(1,2,0),(-1,1,2),(2,-1,1)] then det (Adj(AdjA))= (A) 13 (B) 13^2 (C) 13^4 (D) none of these

If (FIGURE),the values of a and b are 1,2 (b) 2,3quad (c) 1,3 (d) None of these

If z=1/((2+3i)^2), then |z| is (a) . 1/13 (b) . 1/5 (c) . 1/12 (d) . none of these

If A=2sin^2theta-cos2theta,t h e nA lies in the interval (a) [-1,3] (b) [1,2] (c) [-2,4] (d) none of these

If A=2sin^2theta-cos2theta, t h e n A lies in the interval (a) [-1,3] (b) [1,2] (c) [-2,4] (d) none of these

If sqrt(1+(x)/(169))=(14)/(13), then x is equal to (a) 1 (b) 13(c)27 (d) None of these

If A=[[3,-3, 4], [2,-3, 4], [0,-1, 1]] , then a. a d j(a d j A)=A b. |a d j(a d j A)|=1 c. a d j A=I d. none of these

If A=[[3,-3, 4], [2,-3, 4], [0,-1, 1]] , then a. a d j(a d j A)=A b. |a d j(a d j A)|=1 c. a d j A=I d. none of these

11.71-0.86+1.78-9.20=?( a) 2.43 (b) 3.13 (c) 3.43 (d) 4.13 (e) None of these