write in expanded logarithmic form:

Question

ln (x y^3 z^7)

Answer 1

You should really memorize the 3 main rules of logs
log(AB) = ...
log (A/B) = ..
log A^n = ...

log(x y^3 z^7)
= logx + log y^3 + log z^7
= logx + 3logy + 7logz