If x = `( y )^3` , then find the value of `( x )^2`

If x= -2 and y =3 , then find the value of (y/x)^y .

If x =3 and y=1, then find the values of (i) 3x-2y" "(ii) (22)/(3)x^(2)-(7)/(2)y^(2)

If (2x-y) : (5x+3y) = 3:8, then find the value of (x^2+y^2) : (x^2-y^2) . यदि (2x-y) : (5x+3y) = 3:8 है, तो (x^2+y^2) : (x^2-y^2) का मान ज्ञात करें |

If x=1, y=2 and z =3 then find the value of x^3 - z^3 + y^3

If x/y = 3/2 , find the value of ( x^2 + y^2 ) /( x^2 - y^2 )