The expression `(x+y)/(x-y)-:((x+y)^2)/((x^2-y^2))` is equal to `-1` (b) `x-y` (c) 1 (d) `x+y`

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

Factorize each of the following algebraic expressions: (x-y)^(2)+(x-y)6(a+2b)-4(a+2b)^(2)a(x-y)+2b(y-x)+c(x-y)^(2)-4(x-2y)^(2)+8(x-2y)

The expression ((x+(1)/(y))^(a)*(x-(1)/(y))^(b))/((y+(1)/(x))^(a)*(y-(1)/(x))^(b)) reduces to a.((x)/(y))^(a-b) b.((y)/(x))^(a-b)backslash c((x)/(y))^(a+b)d.((y)/(x))^(a+b)

If [(x+y,y),(2x,x-y)][(2),(-1)]=[3/2] then x.y is equal to :

Consider the equation x^(y)=e^(x-y) What is (d^(2)y)/(dx^(2)) at x=1 equal to ?

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))