Question

log 0.20 to the base 5​

Answer 1

Answer:

Use below log rules

Log (1÷a)= Log (a^-1)

Log a^b=b Log a

Now, log0.1= log(1/10) =log (10^-1) =-1 log10

Here log 10= 1 . (From table)

So -1 log10= -1(1)= -1. Ans.

Next, log 0.5 = log (1/2) = log (2^-1) = -1 log 2

Here log 2 = ( From table)

So, -1 log 2= -1(0.30103) = -0.30103 Ans