Simplify: (log(40) - log(20)) + log(3)

First, know the log rule: log(x) - log(y) = log(x/y)Second, know the log rule: log(a) + log(b) = log(ab)So, starting with the brackets: log(40) -log(20) = log(40/20) which is log(2).Now we have: log(2) + log(3).So, using the other log rule we can do: log(2) + log(3) = log(23) which is log(6).Therefore, (log(40) - log(20)) + log(3) = log(6)

Answered by Edward R. Maths tutor

3126 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Why does integration by parts work?


Find D when 8x^3-12x^2-2x+D is divided by 2x+1 when the remainder is -2


Find the roots of the equation y=x^2-8x+5 by completing the square.


By integrating, find the area between the curve and x axis of y = x*exp(x) between x = 0 and x = 1


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