Question

`log_10^3 5+log_10^3 20+log_10 8*log_10 0,25`?

Answer 1

`2`

Explanation:

Calling `a = log_(10) 2` we have

`log_10^3 (10/2)+log_10^3 (2 cdot 10)+log_10 2^3*log_10 2^(-2)=`

`(1-a)^3+(1+a)^3-6a^2=2`