Find the value of `x` if `x= (4/5)^2 div (1/4)^2`

Find the value of x if (-2/3)^4 div (-2/3)^3=(-3/2)^x

Find the value of (4)^3 div (4)^-2

Find the value of 5 5/6 \div 3 1/2 .

Find the value of k, if (k)/(x^(2)-4) = (1)/(x-2)-(1)/(x+2)

Q find the value of:- (-4) div (2/3)

If x- (1)/ (x ) = 4 , find the value of : x^(2) + (1)/( x^(2))

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

If x+1/x=sqrt(5) , find the values of x^2+1/(x^2) and x^4+1/(x^4)

Find the value of x - (2-3x)/4+(3-2x)/5=2-x

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