Finding an Equation of a Tangent Line In Exercises 23-26, (a) use a graphing utility to graph the curve represented by the parametric equations, (b) use a graphing utility to find , and at the given value of the parameter, (c) find an equation of the tangent line to the curve at the given value of the parameter, and (d) use a graphing utility to graph the curve and the tangent line from part (c).
