x^y = y^x
ylog(x)x = xlog(x)y,log base x
y = xlog(x)y,log base x
y/x = log(x)y = p,log base x
So,y = px and y = x^p
x^p = px
x^(p-1) = p
p = 1,x=y=R+,but x≠y
p=2,x=2,y=4
p=1/2,x=4,y=2
p=3,x=3^(1/2),y=3^(3/2)
p=1/3,x=3^(3/2),y=3^(1/2)
p=4,x=2^(2/3),y=2^(8/3)
……