MATHEMATICS · Multi-part · AP · Calculus AB · Limits and Continuity · Limits and Continuity
Problem
Let f(x)=x3−4x and g(x)=sinx, where x is measured in radians.
(1) Evaluate f(0)−g(0) and f(1)−g(1). Determine the sign of each difference.
(2) Use your work in part (a) to identify an interval of length 1 that contains at least one solution to the equation f(x)=g(x).
(3) Compute f(0.5)−g(0.5). Use this additional value to narrow the location of a solution to an interval of length at most 0.5, and clearly state that interval.