Question

Please answer this question...

3^30 + 3^29 + 3^28
―――――――――――
3^31 + 3^30 + 3^29

​

Answer 1

Answer:

1/3

Step-by-step explanation:

given

3^30+3^29+3^28

---------------

3^31+3^30+3^29

take 3^28 common in numerator and 3^29 common in denominator

3^28[3^2+3+1]

-------------

3^29[3^2+3+1]

3^28

-----

3^29

=3^(28-29)

=3^(-1)

=1/3