Question

examples of base changing formula of logarithms


pls help me​

Answer 1

Answer:

If ax=b , then taking loga of both sides we have x=logab

However, if we take the log of both sides we have logax=logb

⟹xloga=logb

⟹x=logb/loga

And if we substitute x from the beginning, we have:

logab=logb/loga

Answer 2

$log_{b}(x) = log_{d}(x) \div log_{d}(b)$