Find the value of `[[5-x,x+1],[2,4]]`

Find the values of x , if |[2, 4], [5, 1]|=|[2x,4], [6,x]|

Find the value of x if |[2, 1 ,x+1],[-1,3,-4],[0,-5,3]|=0

Find the values of x, if (i) |{:(2,4),(5,1):}|=|{:(2x,4),(6,x):}| (ii) |{:(2,3),(4,5):}|=|{:(x,3),(2x,5):}|

Find the value of x such that [1,x,1][[1,2,3],[4,5,6],[3,2,5]][[1],[-2],[3]]=O

Find the value of x if A= |(3x, 2), (5x,1)| if |A|= 5

Find the value of x^4+9x^3+35 x^2-x+4 for x=-5+2sqrt(-4).

If x=sqrt 2 +1 , find the value of x^4+1/x^4

If x=2 and y=5 find the values of : 3x-4y

If x+1/x=4, find the values of x^2+1/(x^2)

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