y=4sin(kx) write down dy/dx.

let u=kx,du/dx=ky= 4 sin(u)dy/du= 4cos(u)
dy/dx= du/dx*dy/du = 4kcos(u) =4kcos(kx)

Answered by William H. Maths tutor

2868 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find the integral of (2(3x+2))/(3x^2+4x+9).


A circle with equation x^2+y^2-2x+8y-40=0. Find the circle centre and the radius


Find the gradient of the curve with the equation y = x^3+7x^2+1 at x=2


What is the integral of (cos(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