What is the derivative of x+cosxtanx? Calculus Differentiating Trigonometric Functions Derivative Rules for y=cos(x) and y=tan(x) 1 Answer GiĆ³ Mar 30, 2015 I would use the Quotient Rule; have a look: 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(x2) ? How do you find the derivative of y=excos(x) ? How do you find the derivative of y=xcos(x)? How do you find the second derivative of y=cos(x2) ? How do you find the 50th derivative of y=cos(x) ? How do you find the derivative of y=cos(x2) ? See all questions in Derivative Rules for y=cos(x) and y=tan(x) Impact of this question 8000 views around the world You can reuse this answer Creative Commons License