
Solve for the real domain

if

then


Solve : <span>

</span>
use the logarithmic definition :



Divide both sides by 2 :


hope this helps!
Answer:
<u>r=6</u>
Step-by-step explanation:
3 = r/2
6 = r
Answer:
1.4375
Step-by-step explanation:



= 
2.718 ≈e that is the answer to your question.