What is the product rule and when do you use it?

The product rule is used when finding the derivative of the product of two functions - two functions multipled together.

If y = f(x)g(x), then

dy/dx = f'(x)g(x) + f(x)g'(x)

Where f'(x) is the derivative of f(x) and g'(x) is the derivative of g(x).

TJ
Answered by Tom J. Maths tutor

4578 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find the differential of y(x)=(5x*Cos(3x))^2


The quadratic equation (k+1)x^2 + (5k - 3)x + 3k = 0 has equal roots. Find the possible values of k


How do I use the chain rule for differentiation?


the line L goes through the points A (3,1) and B(4,-2). Find the equation for L.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning