" (xiii) "x^(y)*y^(x)=(x+y)^(x+y)

If x^(y) y^(x)=(x+ y)^(x+y).then (dy)/(dx)=

In the system of equations the value of xy is: 2^(y-x)(x+y)=1,(x+y)^(x-y)=2

In the system of equations the value of xy is: {2^(y-x)(x+y)=1,(x+y)^(x-y)=2

the value of lim_(x rarr y)(x^(y)-y^(x))/(x^(x)-y^(y)) is:

If x^(y)=y^(x) then ((x)/(y))^((x)/(y))=x^((x)/(y)-k) where k=

When simplified (x^(-1)+y^(-1))^(-1) is equal to (a)\ x y (b) x+y (c) (x y)/(x+y) (d) (x+y)/(x y)

Simplify the following : (x - y)(y - x) + (x + y)(x - 2y)

If x^(y)=y^(x), then ((x)/(y))^(x/y) is equal to a.x^(y/x) b.x^((x)/(y)-1) c.1d.x^((x)/(y))

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)