28.|[2-x,2,3],[2,5-x,6],[3,4,10-x]|=0

If |[x,3, 6],[ 3, 6,x],[6,x,3]|=|[2,x,7],[x,7, 2],[ 7, 2,x]|=|[4, 5,x],[5,x,4],[x,4, 5]|=0, then x is equal to a. 0 b. -9 c. 3 d. none of these

If |[x,3, 6],[ 3, 6,x],[6,x,3]|=|[2,x,7],[x,7, 2],[ 7, 2,x]|=|[4, 5,x],[5,x,4],[x,4, 5]|=0, then x is equal to a. 0 b. -9 c. 3 d. none of these

If |[x,3, 6],[ 3, 6,x],[6,x,3]|=|[2,x,7],[x,7, 2],[ 7, 2,x]|=|[4, 5,x],[5,x,4],[x,4, 5]|=0, then x is equal to

Solve: 2X+Y+[[-2,1,3],[5,-7,3],[4,5,4]]=0,X-Y=[[4,7,0],[-1,2,-6],[-2,8,-5]] .

Find x and y, If [2,0,3]{3[[6,3],[-1,2],[5,4]]+2[[-4,-4],[1,0],[-3,4]]}=[x,y]

Find x and y satisfying the matrix equation [(x-y,2,-2),(4,x,6)] + [(3,-2,2),(1,0,-1)] = [(6,0,0),(5,2x+y,5)]

Solve for x : |(x-2,2,5),(x-7,3,6),(2x-6,4,7)|=0

If [(x+1,-3,4),(-5,x+2,2),(4,1,x-6)]=0 then x=

solve : |{:(x-2,2,5),(x-7,3,6),(2x-6,4,7):}|=0