Differentiate: y = sin(2x).

Using the chain rule with u = 2x:

y = sin(2x) becomes y = sin(u)

dy/dx = dy/du * du/dx

dy/du = cos(u)

du/dx = 2

So dy/dx = dy/du * du/dx = 2 cos(u).

SB
Answered by Samuel B. Maths tutor

18238 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Solve to find sin x , 4cos^2 + 7sin x -7 =0


Given that y=(4x-3)^3 x sin2x find dy/dx


Find dy/dx of y=e^xcosx


Find the binomial expansion of (-8+4x)^(2/3) up to and including the term in x^2.


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