Integrate f(x)=lnx

Integration by parts formula is given in all A level maths formula books however would be of use to memorise Formula: INT(uv')dx= uv- INT(u'v)dx Hint: write lnx as (1).lnxlet u=lnxhence u' = du/dx = 1/x let v' = 1hence v = INT(v')dx = x= x.lnx - INT(x.1/x)dx=x.lnx - INT(1)dx=x.lnx - x +c

GN
Answered by George N. Maths tutor

3168 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

3. The point P lies on the curve with equation y=ln(x/3) The x-coordinate of P is 3. Find an equation of the normal to the curve at the point P in the form y = ax + b, where a and b are constants.


Show that, for all a, b and c, a^log_b (c) = c^log_b (a).


A 2.4 m long plank of mass 20kg has 2 pins, each 0.5 meters from each respective plank end. A person of mass 40kg stands on the plank 0.1m from one of the pins. Calculate the magnitude of reactions at the pins for this structure to be in equilibrium.


Prove that 2cot2x+tanx=cotx


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences