Find the derivative with respect to x, of 5cos(x)+ 4sin(x)

f(x) = 5cos(x) + 4sin(x)to find f,(x) this is just another notation for the derivative.To differentiate trigonometry I always use this one simple trick which I will show on the white board better sin cos -sin -cosWhen you differentiate sin or cos you move down this list and it loops round. This helps you keep track of the sign.following this notation the final answer will bef,(x) = -5sin(x) + 4cos(x).

Answered by Ryan P. Maths tutor

3697 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

A curve has equation y = 20x −x2 −2x3 . (A) Find the x-coordinates of the stationary points of the curve.


How would you express (11+x-x^2)/[(x+1)(x-2)^2] in terms of partial fractions?


sin(x)/(cos(x)+1) + cos(x)/(sin(x)+1) = 1


dx/dt=-5x/2 t>=0 when x=60 t=0


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