The tangent equation of curve y = INX at point (E, f (E)) is

The tangent equation of curve y = INX at point (E, f (E)) is

y'=1/x
y'|x=e =1/e
f(e)=1
Tangent equation of curve y = INX at point (E, f (E)), Y-1 = 1 / E (x-e)
That is, x-e * y = 0