Explain the Chain Rule
The chain rule is used to differentiate composite functions, ie "a function of a function". In this case we have an outer function and an inner function. For example
Differentiate f(g(x)). Here f is the outer function and g the inner.
The derivative of this function is found by differentiating the outer function and evaluating its derivative at the point g(x) and then multiplying by the derivative of g(x):
f(g(x))' = f'(g(x))g'(x)
AC
Related Maths A Level answers
All answers ▸How do you find the possible values of cos(x) from 5cos^2(x) - cos(x) = sin^2(x)?
Differentiate the function y = 26 + x - 4x³ -½x^(-4)
Find the values of the constants a and b for which ax + b is a particular integral of the differential equation 2y' + 5y = 10x. Hence find the general solution of 2y' + 5y = 10x .
How do you divide polynomials? How do you do it with remainder?