Here is the online Arccot calculator, also known as the Inverse Cotangent calculator to find the inverse cotangent values in radians and degrees for the given number. Arc Cotangent is the inverse of the cotangent function cotx. The arccotx is a multivalued function in trigonometry. These inverse trigonometric functions are called cyclometric functions. The range of inverse cotangent (cot-1) is restricted to (0, 180°) or (0, π). Also arccot angle is the upper half of the unit circle.
What is the arccot value of 21?
Arc Cot 21 = 0.0476 radians
Arc Cot 21 = 2.7263 degrees