°⁻¹ a rad⁻¹

°⁻¹ a circle⁻¹ | °⁻¹ a turn⁻¹ | °⁻¹ a r⁻¹ | °⁻¹ a cyc⁻¹ | °⁻¹ a 1/Rt Angle | °⁻¹ a Quadrant⁻¹ | °⁻¹ a Sextant⁻¹ | °⁻¹ a rad⁻¹ | °⁻¹ a sign⁻¹ | °⁻¹ a g⁻¹ | °⁻¹ a g⁻¹ | °⁻¹ a mil⁻¹ | °⁻¹ a '⁻¹ | °⁻¹ a "⁻¹