1. [5 points each] Consider the rational function: \"V x2 x2+1 R(x) = a) Find the derivative: R'(X) = b) Find an equation of the tangent line at x=0. c) Show that the X-intercept of the tangent line in part (b) is also an xintercept of R(x). d) Find a second tangent line that has the same slope as the tangent line in part (b)