Question

How do you add `\frac { 1} { 4} \log _ { 4} 81+ \frac { 1} { 2} \log _ { 4} 25`?

Answer 1

`log_4(15)`

Explanation:

`1/4log_4(81)+1/2log_4(25)`

`=log_4(81)^(1/4)+log_4(25)^(1/2)`

`=log_4(3)+log_4(5)`

`=log_4(3*5)`

`=log_4(15)`