What is the derrivative (dy/dx) of the equation 2 = cos 4x - cos 2y in terms of x and y?

A common C4 question where the student would need to use implicit differentiation to obtain an equation with the derrivative in it. 0 = -4sin4x + 2(dy/dx)sin2y. Then all that is required is rearranging the expression to make dy/dx the subject. (4sin4x) / (2sin2y) = (2sin2x) / sin2y = dy/dx

Answered by Arsh Y. Maths tutor

2944 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

A stone, of mass m , falls vertically downwards under gravity through still water. The initial speed of the stone is u . Find an expression for v at time t .


find the value of dy/dx at the point (1,1) of the equation e^(2x)ln(y)=x+y-2


Find the gradient of the line 4x+9y=10.


Find an expression in terms of powers of cos(x) for cos(5x)


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