+0  
 
0
234
1
avatar

Please help.. i'm really stuck..

 

log sqrt(5x) + log sqrt(20x)

Guest Sep 19, 2017
 #1
avatar+92794 
+1

log √[5x] + log √[20x]

 

Note that we can use the properties   

 

log a  + log b  = log [ a * b ]           and  log ab  = b*log a

 

So we can write

 

log √[5x] + log √[20x]   = 

 

log (5x)1/2 + log (20x)1/2  =  

 

(1/2)  [ log (5x)  + log (20x) ]  =

 

(1/2) [  log (5x  * 20x) ]  =

 

(1/2) log ( 100 x2)  =

 

log (100x2)1/2  =

 

log  √ [ 100x2 ]

 

log (10x)      which can also be simplified as  

 

log 10 + log x  =

 

1 + log x

 

 

 

cool cool cool

CPhill  Sep 19, 2017

13 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.