If `x=2\ \ ` and `y=4,` then `(x/y)^(x-y)+\ (y/x)^(y-x)=` 4 (b) 8 (c) 12 (d) 2

If x=2\ \ and y=4, then (x/y)^(x-y)+\ (y/x)^(y-x)= (a) 4 (b) 8 (c) 12 (d) 2

If (x+y) = 12 and (x-y) = 4 then (2x - 4y) = ?

If (x)/(x-y)=log((a)/(x-y)) then (dy)/(dx) is (a) (x)/(y), (b) 2-(x)/(y), (c) 2, (d) (x-y)/(x)

If x^(4)+y^(4)=17 and x+y=1, then what is the value of x^(2)y^(2)-2xy?( a) 8 (b) 10(c)12 (d) 16

The product of x\ a n d\ y is decreased by 4 is written as (a) 4-x y (b) x\ (y-4) (c) x y-4 (d) x y+4

Factorize: 4(x-y)^(2)-12(x-y)(x+y)+9(x+y)^(2)

Factorize: 4(x-y)^2-12(x-y)(x+y)+9(x+y)^2

The factors of x^3-x^2y-x y^2+y^3 are (a (x+y)(x^2-x y+y^2) (b) (x+y)(x^2+x y+y^2) (c) (x+y)^2(x-y) (d) (x-y)^2(x+y)

The factors of x^2+4y^2+4y-4x y-2x-8 are (a) (x-2y-4)(x-2y+2) (b) (x-y+2)(x-4y-4) (c) (x+2y-4)(x+2y+2) (d) none of these

(x+y)/(2)-(x-y)/(3)=8,(x+y)/(3)+(x-y)/(4)=4