If `[(2,3),(5,7)][(1,-3),(-2, 4)]=[(-4, 6),(-9,x)]` , find `xdot`

If [(2,3),(5,7)] [(1,-3),(-2,4)]=[(-4,6),(-9,x)], write the value of x

If [2 3 5 7][1-3-2 4]=[-4 6-9x] , find xdot

If A=[(-3,1,6),(2,-5,0),(1,-3,4)],B=[(4,7),(-4,2),(-1,-5)] and AX=B, then the size of X is

If |[3x, 7], [-2 , 4]|=|[8, 7], [6, 4]| , find the value of xdot

If {[(5,1,4),(7,6,2),(1,3,5)][(1,6,-7),(6,2,4),(-7,4,3)][(5,7,1),(1,6,3),(4,2,5)]}^(2020)=[(a_(1),a_(2),a_(3)),(b_(1),b_(2),b_(3)),(c_(1),c_(2),c_(3))] , then the value of 2|a_(2)-b_(1)|+3|a_(3)-c_(1)|+4|b_(3)-c_(2)| is equal to

If |[2x+5 ,3],[ 5x+2, 9]|=0 , find xdot

If A=[(2,3,4),(0,4,6), (5,8,9)] and B=[(3 ,0 ,5) ,(5 ,3 ,2), (0 ,4 ,7)] , find 3A-2B .

If A=[{:(9, 7, 3), (5, -1, 4), (6, 8, 2):}]" find "A^(-1) and hence solve the system of equations: 9x+7y+3z=6, 5x-y+4z=1, 6x+8y+2z=4 .

Find the matrix A such that : [(1 ,0 ),(0 ,1)]A=[(3 ,3 ,5 ),(1, 0 ,1)] (ii) A[(1, 2, 3 ),(4, 5 ,6)]=[(-7,-8,-9 ),(2, 4 ,6)]

Find the area of the triangle whose vertices are given below : (i) (-3,-4), (-2,-7), (-1,-9) (ii) (3,8),(-4,2), (5,1) (iii) (2,1), (3,2), (-1, 4)