What is the derivative of #tan^(-1)(x^2)#? Calculus Differentiating Trigonometric Functions Derivative Rules for y=cos(x) and y=tan(x) 1 Answer marfre Mar 8, 2017 #y '= (2x)/(1 + x^4)# Explanation: Use #(tan^-1(u))' = (u')/(1+u^2)# Let #u = x^2#, #u' = 2x# #y ' = (2x)/(1 + (x^2)^2) = (2x)/(1 + x^4)# Answer link Related questions What is the derivative of #y=cos(x)# ? What is the derivative of #y=tan(x)# ? How do you find the 108th derivative of #y=cos(x)# ? How do you find the derivative of #y=cos(x)# from first principle? How do you find the derivative of #y=cos(x^2)# ? How do you find the derivative of #y=e^x cos(x)# ? How do you find the derivative of #y=x^cos(x)#? How do you find the second derivative of #y=cos(x^2)# ? How do you find the 50th derivative of #y=cos(x)# ? How do you find the derivative of #y=cos(x^2)# ? See all questions in Derivative Rules for y=cos(x) and y=tan(x) Impact of this question 21857 views around the world You can reuse this answer Creative Commons License