How do I differentiate a trigonometric function for something that is not just a single variable (e.g. d/dx (sin(3x))?

In order to differentiate a trig function with a term in front of the variable you are differentiating, you must use the chain rule. For example d/dx (sin (3x)) becomes 3cos(3x) because you have to multiply the two differentials: 3 and cos (3x).

KT
Answered by Kieran T. Maths tutor

4049 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Show that sin2A is equal to 2sinAcosA


How do I differentiate an expression of the form y = (ax+b)^n?


Why is the derivative of x^2 equal to 2x?


Show that x^2+6x+11 can be written in as (x+p)^2+q, where p and q are integers to be found.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences