Answer
See graph, (a) $(5,-\frac{4\pi}{3})$, (b) $(-5,\frac{5\pi}{3})$, (c) $(5,\frac{8\pi}{3})$.
Work Step by Step
See graph for the given point. We can find its equivalents as (a) $(5,-\frac{4\pi}{3})$, (b) $(-5,\frac{5\pi}{3})$, (c) $(5,\frac{8\pi}{3})$.