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log(5)9+2log(5)6-log(5)3

 Apr 20, 2016
 #1
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log59 + 2log56 - log53  =

 

log5 9 + log5 6^2 - log5 3  =

 

log5 9 + log5 36 - log5 3  =

 

log5  [ (9 * 36) / 3 ]  =

 

log5 [ 3 * 36]  =

 

log5 [108]     

 

This is condensed  ....  we can use the change of base  formula to evaluate this =

 

log (108) / log (5)  = about 2.909

 

 

cool cool cool

 Apr 20, 2016

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