Logs question (1 Viewer)

[enigma_1]

How do you do b and d?

thanks

 

[Chris100]

You have to use the log rule: a^log_ab=b
Proof should be in the theory section of the Cambridge book
So for a) turn the negative log into positive by making whatever is in a) into a fraction
For c) you can add the two logs in the power because they have the same base, then go on from there by using the log rule aforementioned

 

[enigma_1]

Thanks man! I ended up getting those. Any idea of b and d?

 

[Chris100]

So for b and d, you have to use the log rule log_abⁿ=nlog_ab

 

[such_such]

http://puu.sh/645h5.jpg

Hope I helped

 

[enigma_1]

Thank you

 

[enigma_1]

Does anyone know how to do question H?

 

[AAEldar]