# The way we write ln(x) to the power of a

## Main Question or Discussion Point

I have learned that (cos x)a can be written as cosax. And like wise for sin x and tan x.

How come we don't write (ln x)a as lnax or (log x)a as logax?

I just think it seems smarter when its written with as few symbols as possible.

(Or perhaps its just my textbook which don't write it this way?)

arildno
Homework Helper
Gold Member
Dearly Missed
LOTS of textbooks use that convention. I will go as far as to say it is the most common convention.

1 person
Mentallic
Homework Helper
Personally, I hardly ever see logs with powers (except in a couple of circumstances), while trigs with powers (especially squared) are a common occurrence.

Office_Shredder
Staff Emeritus