Since the angle <span><span><span>5π</span>3</span><span><span>5π</span>3</span></span> is in the fourth quadrant, the reference angle formula is <span><span><span>Ar</span>=2π−<span>Ac</span></span><span><span>Ar</span>=2π-<span>Ac</span></span></span>.<span><span><span>Ar</span>=2π−<span><span>5π</span>3</span></span><span><span>Ar</span>=2π-<span><span>5π</span>3</span></span></span>Simplify the right side of the equation <span><span>Ar</span>=2π−<span><span>5π</span><span>3 i hope this helps.</span></span></span>
