`If |[x+1, 2], [4,x-1]|=0 then value of x is `

If |[x,1],[1,x]|=|[2,0],[8,4]| then value of x is :

If |{:(2,3,2),(x,x,x),(4,9,1):}|+3=0 then the value of x is

If |[1, x, x^2], [x, x^2, 1], [x^2, 1, x]|=3, then find the value of |[x^3-1, 0, x-x^4], [0, x-x^4, x^3-1], [x-x^4, x^3-1, 0]|

If x in [-1, 0] , then find the value of cos^(-1) (2x^(2) - 1) - 2 sin^(-1) x

If A=[(2x,0),(x,x)] and A^(-1)=[(1,0),(-1,2)] , then the value of x is

If |(x,2,3),(2,3,x),(3,x,2)|=|(1,x,4),(x,4,1),(4,1,x)|=|(0,5,x),(5,x,0),(x,0,5)|=0, then the value of x equals (x in R):