Question: (a) Find the equation of the tangent line to y = ln x at x = 1.
(b) Use it to calculate approximate values for ln(1.1) and ln(2).
(c) Using a graph, explain whether the approximate values are smaller or larger than the true values. Would the same result have held if you had used the tangent line to estimate ln(0.9) and ln(0.5)? Why?