If `y=x+x^2+x^3+ . . . . ` then `x` is equal to

If x^y = y^x and y = 2x , then x is equal to :

If x^y = y^x and y = 2x then x is equal to :

Let y = y (x) be the solution of the differential equation ( x - x ^(3)) dy = ( y + y x^(2) - 3x^(4)) dx , x gt 2 . If y (3) = 3 then y (4) is equal to :

If y = (x +2)/( x +1) , y ne 1, then x equals

If x^(y) = e^(2(x-y)), " then" f'(x) is equal to

If x/2 + y/3 = 4 and 2/x + 3/y = 1, then what is x + y equal to ?

The area between the curves y = x^(3) and y = x + |x| is equal to