Question

2 log x = -1 solve the equation ??

Answer 1

First let's isolate log(x)

2 log(x) = -1

log(x) = -1/2

When you have log just by itself with no specific base, we assume it's base 10. So bascially what is the question asking you? Well isn't just asking you 10^(-1/2) = x

x = 10^(-1/2)

x = 1/[10^(1/2)]

\[x = 1/(\sqrt{10})\]