27. Logarithms 1. Additional Maths OCR FSMQ

In this lesson we learn about a new function - the logarithm - what it is and the three log laws which we need to be fluent at using. Afterwards, practise exercise 12.2 from the textbook:

[sophiehaworth]

I just want to say a huge thank you for your help over the last couple of months, I’ve really struggled with this course. Feeling more confident with the topics thanks to your videos! Love your in-depth explanations and video structure. Keep it up!

[archiee]

Hour and a half till our GCSE Additional maths exam, you’re a saviour. Also, what’s your first name?

[castlesofsteel]

We need to get this channel to 1mil subs

[joshsingh]

Can you do a full practise paper please as often the hardest part of the exam if knowing what to apply to the question

[nawal]

Of Ex. 12.2, how is question 9i done?

[liyazhu]

Sir, could you help me with question 7 iii)? im really confused on why there are 2 answers and how to get to both of them

[EWho-nujl]

sir im so confused i don’t understand how to do question 7 on exercise 12.2 or 8 at all

[someone...]

Hey sir, could you help me out with question 6 i) on exercise 12.2. I mean u can simply just cube root 800. But it says to use logarithms, and so i guess its asking me to set up a logarithm which equals the cube root of 800. But how do i do that? I cant seem to figure it out.😔