If `[[1,2]] * [[-1],[4]] = [x] `
then value of x is

If [[1,2],[2,1]][[x],[y]]=[[5],[4]] , then value of y is ____.

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

If 1/x + 2/3 = 1/(2x) +3/4 them the value of x is

If [x+y x-y]=[2 1 4 3][1-2] , then write the value of (x ,\ y) .

If int( 2^(x))/( sqrt( 1- 4^(x))) dx = k sin^(-1) ( 2^(x)) + C , then the value of k is

Let cos^(-1) (4x^(3) -3x) = a + b cos^(-1) x If x in [-1, -(1)/(2)) , then the value of a + b pi 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- (1)/ (x ) = 4 , find the value of : x^(2) + (1)/( x^(2))

If x- (1)/ (x ) = 4 , find the value of : x+ (1)/(x)

If |[x, x],[ 1, x]|=|[3, 4],[ 1, 2]|, write the positive value of x