°⁻¹ -e sign⁻¹

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