Monday, 4 September 2023

LOGARITHMS K3

 

If Logax = 18, find Loga(1/x5).

 

Solution

 

= Loga(1/x5)

 

= Logax-5   [Since 1/an = a-n]

 

= -5 x Logax   [Since Logmpq   = q x Logmp]   

 

= -5 x 18

 

= -90

 

 

TRY THIS………..

 

If Logac= 40, find Loga(1/c6)


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