Respuesta :
Answer:
The answer is 1/9.
Step-by-step explanation:
Using the equation a-b=2, we can solve that a = 2+b.
We can then substitute that into the expression given to get 3^b/3^(2+b).
Since they have the same base, we can subtract the exponents from the numerator and denominator to get 3^(b-2-b) which simplifies to 3^-2.
3^-2 is simply 1/9.
Answer:
using laws of exponents....
m^a/m^b = m^a-b
therefore,
3^b/3^a = 3^b-a
=> 3^-2\
=> 1/3^2
=> 1/9