How do you expand Ln( sqrt(a ^2 times b) /root4(b))?

1 Answer
Jun 15, 2016

Use the rule ln(a/n) = lna - lnn.

= lnsqrt(a^2b) - lnb^(1/4)

= ln(a^2b)^(1/2) - lnb^(1/4)

Use the rule loga^n = nlog.

= 1/2ln(a^2b) - 1/4lnb

You can expand using the rule ln(a xx b) = lna + lnb.

=1/2(lna^2 + lnb) - 1/4lnb

= 1/2lna^2 + 1/2lnb - 1/4lnb

It is possible to simplify further but that would involve compressing. I don't know what you want...

Hopefully this helps!