Question

If $\log 2=0.3010$ and $\log 3=0.4771$, then the value of $\log 25$ is $1.3980$.
If true then write 1 and if false then write 0

Answer 1

${\log }^{}2=0.3010{\log }^{}3=0.4771\log 25=\log \frac{100}{4}=\log \left({10}^2\right)-\log 4=2-2\log 2=2-2\times 0.3010=1.398$