What is the cosine of arctan(x) | cos( arctan(x) ) = ? RapidTables Home > Math > Trigonometry > Arctan > Cosine of arctan(x) What is the cosine of arctan(x) cos( arctan(x) ) = ? The cosine of the arctangent of x is: See also Arctan Sine of arctan Derivative of arctan Integral of arctan Write how to improve this page Submit Feedback ARCTAN Arctan of 0 Arctan of 1 Arctan of 2 Arctan of infinity Derivative of arctan Integral of arctan Sine of arctan Cosine of arctan Arctan graph Arctan calculator RAPID TABLES Recommend Site Send Feedback About This website uses cookies to improve your experience, analyze traffic and display ads. Learn more OK Manage Settings