Differentiate (x^0.5)ln(x) with respect to x.

First it's helpful to write f(x) = (x^0.5)ln(x)The product rule is useful here, this may be written in the form (u(x)v(x))' = u(x)v'(x) + u'(x)v(x).Here we will take u(x) = x^0.5 and v(x) = ln(x), meaning f(x) = u(x)v(x). Now, remembering that x^0.5 is simply the square root of x, we find:u'(x) = 0.5x^(-0.5).Differentiating logs can sometimes be tricky, but here we have the simple case of ln(x):v'(x) = (1/x), I would recommend memorising this resultThrough substitution, f'(x) = (x^0.5)(1/x) + (0.5x^(-0.5))(ln(x)) = (x^(-0.5)) + (ln(x))/(2x^0.5) = (2 + ln(x))/(2*x^0.5)

CC
Answered by Connor C. Maths tutor

3973 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Express (3-5x)/(x+3)^2 in the form A/(x+3) + B/(x+3)^2


How do you find the inverse of a function?


a) i) find dy/dx of y = 3x^4 - 8x^3 - 3 ii) then find d^2y/dx^2 b) verify that x=2 at a stationary point on the curve c c) is this point a minima or a maxima


Differentiate sin3x-3x= f(x)


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