the equation of the tangent line to th curve at the point x=3

Question

equation is 4/(x-1) i got the derivative as -4x/(x-1)^2

Answer 1

OK, you got the derivative; the value of the derivative at x = 3 is -1, the slope of the tangent.

The point on the curve at x = 3 is (3,2).

So you need the equation of the straight line with slope = =1 through (3,2),