For what value of x, the matrix `A=[(0,1,-2),(-1,0,x^(3)),(2,-3,0)]` is skew- symmetric .

For what value of x the matrix A = [(1,-2,3),(1,2,1),(x,2,-3)] is singular.

Show that the matrix A=[(0, 1,-1),(-1,0,1),(1,-1,0)] is a skew symmetric matrix.

Find the values of x for which matrix [(3,-1+x,2),(3,-1,x+2),(x+3,-1,2)] is singular.

If [(0,p,3),(2,q^(2),-1),(r,1,0)] is skew- symmetric, find the values of p,q, and r.

The matrix is [(4,3,1),(0,2,3),(0,0,-2)] is:

Express the matrix [(7,1,5),(-4,0,3),(-2,6,1)] as the sum of a symmetric and a skew symmetric matrices.

Find the value of x if |(x-1,x,x-2),(0,x-2,x-3),(0,0,x-3)|=0

For what values of x:[(1,2,1)][(1,2,0),(2,0,1),(1,0,2)][(0),(2),(x)]=O ?

Express the matrix A=[(1,3,5),(-6,8,3),(-4,6,5)] as the sum of a symmetric and a skew - symmetric matrices.